diff --git a/aux-addon.lua b/aux-addon.lua
index 2d1538f..98f70e6 100644
--- a/aux-addon.lua
+++ b/aux-addon.lua
@@ -56,11 +56,11 @@ do
 			__newindex=function(_, _, value) return f(value) end, __unm=function(self) return self end,
 		})
 	end
-	local temp, perm = modifier(function(t) transient[t] = true; return t end), modifier(function(t) transient[t] = nil; return t end)
-	public.temp() -- TODO or 'auto' 'free' 'release' 'unlock'?
+	local temp, perm = modifier(function(t) transient[t] = true; return setmetatable(t, nil) end), modifier(function(t) transient[t] = nil; return t end)
+	public.temp() -- TODO or 'auto' 'free' 'release'?
 	function accessor() return temp end
 	function mutator(t) return temp(t) end
-	public.perm() -- TODO or 'persist' 'lock'??
+	public.perm()
 	function accessor() return perm end
 	function mutator(t) return perm(t) end
 
@@ -87,7 +87,7 @@ do
 	end
 	do
 		local mt = collector_mt(function(self, value)
-			rawset(self, value, true)
+			self[value] = true
 		end)
 		function public.accessor.set()
 			return setmetatable(t, mt)
@@ -97,7 +97,7 @@ do
 		local key
 		local mt = collector_mt(function(self, value)
 			if key ~= nil then
-				rawset(self, key, value)
+				self[key] = value
 				key = nil
 			else
 				key = value
@@ -298,7 +298,7 @@ do
 	end
 	function ADDON_LOADED.Blizzard_CraftUI()
 		hook('CraftFrame_SetSelection', function(...) temp=arg
-			local results = {orig.CraftFrame_SetSelection(unpack(arg))}
+			local results = temp-{orig.CraftFrame_SetSelection(unpack(arg))}
 			local id = GetCraftSelectionIndex()
 			local reagent_count = GetCraftNumReagents(id)
 			local total_cost = 0
@@ -325,7 +325,7 @@ do
 	end
 	function ADDON_LOADED.Blizzard_TradeSkillUI()
 		hook('TradeSkillFrame_SetSelection', function(...) temp=arg
-			local results = {orig.TradeSkillFrame_SetSelection(unpack(arg))}
+			local results = temp-{orig.TradeSkillFrame_SetSelection(unpack(arg))}
 			local id = GetTradeSkillSelectionIndex()
 			local reagent_count = GetTradeSkillNumReagents(id)
 			local total_cost = 0
diff --git a/gui/auction_listing.lua b/gui/auction_listing.lua
index d5615a6..f574e77 100644
--- a/gui/auction_listing.lua
+++ b/gui/auction_listing.lua
@@ -1,4 +1,4 @@
-module 'auction_listing' import 'gui'
+module 'auction_listing' import 'gui' 'sorting' 'history' 'money'
 
 _g.aux_price_per_unit = false
 
diff --git a/tabs/post/core.lua b/tabs/post/core.lua
index 100d85e..306d150 100644
--- a/tabs/post/core.lua
+++ b/tabs/post/core.lua
@@ -3,7 +3,7 @@ module 'post_tab' import 'scan' 'post' 'info'
 local DURATION_4, DURATION_8, DURATION_24 = 120, 480, 1440
 local settings_schema = {'record', '#', {stack_size='number'}, {duration='number'}, {start_price='number'}, {buyout_price='number'}, {hidden='boolean'}}
 
-existing_auctions = {}
+existing_auctions = t
 mutable.inventory_records = nil
 mutable.scan_id = 0
 mutable.selected_item = nil
@@ -35,7 +35,7 @@ function USE_ITEM(item_info)
 	select_item(item_info.item_key)
 end
 
-function default_settings()
+function accessor.default_settings()
     return {
         duration = DURATION_8,
         stack_size = 1,
@@ -48,13 +48,13 @@ end
 function read_settings(item_key)
     item_key = item_key or selected_item.key
     local dataset = persistence.load_dataset()
-    dataset.post = dataset.post or {}
+    dataset.post = dataset.post or t
 
     local settings
     if dataset.post[item_key] then
         settings = persistence.read(settings_schema, dataset.post[item_key])
     else
-        settings = default_settings()
+        settings = default_settings
     end
     return settings
 end
@@ -63,7 +63,7 @@ function write_settings(settings, item_key)
     item_key = item_key or selected_item.key
 
     local dataset = persistence.load_dataset()
-    dataset.post = dataset.post or {}
+    dataset.post = dataset.post or t
 
     dataset.post[item_key] = persistence.write(settings_schema, settings)
 end
@@ -96,12 +96,12 @@ end
 
 function update_auction_listing()
 	if not ACTIVE then return end
-    local auction_rows = {}
+    local auction_rows = t
     if selected_item then
         local unit_start_price = get_unit_start_price()
         local unit_buyout_price = get_unit_buyout_price()
 
-        for i, auction_record in existing_auctions[selected_item.key] or {} do
+        for i, auction_record in existing_auctions[selected_item.key] or tt do
 
             local blizzard_bid_undercut, buyout_price_undercut = undercut(auction_record, stack_size_slider:GetValue())
             blizzard_bid_undercut = money.from_string(money.to_string(blizzard_bid_undercut, true, nil, 3))
@@ -345,7 +345,7 @@ end
 
 function unit_vendor_price(item_key)
 
-    for slot in info.inventory do
+    for slot in info.inventory do temp=slot
 
         local item_info = info.container_item(unpack(slot))
         if item_info and item_info.item_key == item_key then
diff --git a/tabs/search/core.lua b/tabs/search/core.lua
index 962f47f..8f70602 100644
--- a/tabs/search/core.lua
+++ b/tabs/search/core.lua
@@ -1,4 +1,4 @@
-module 'search_tab' import 'scan'
+module 'search_tab' import 'scan' 'scan_util'
 
 StaticPopupDialogs['AUX_SEARCH_TABLE_FULL'] = {
     text = 'Table full!\nFurther results from this search will still be processed but no longer displayed in the table.',
diff --git a/util/core.lua b/util/core.lua
index 915a7c9..9e1e0a1 100644
--- a/util/core.lua
+++ b/util/core.lua
@@ -19,14 +19,14 @@ do
 end
 
 do
-	local formal_parameters = {}
+	local formal_parameters = t
 	for i=1,9 do
 		local key = '_'..i
-		public[key] = {}
+		public[key] = t
 		formal_parameters[_m[key]] = i
 	end
 	local function helper(f, arg1, arg2)
-		local params = {}
+		local params = t
 		for i=1,arg1.n do
 			if formal_parameters[arg1[i]] then
 				tinsert(params, arg2[formal_parameters[arg1[i]]])
diff --git a/util/info.lua b/util/info.lua
index 496eb19..192e078 100644
--- a/util/info.lua
+++ b/util/info.lua
@@ -33,7 +33,7 @@ do
 		INVTYPE_TABARD = {19},
 	}
 	function public.inventory_index(slot)
-	    return unpack(inventory_index_map[slot] or {})
+	    return unpack(inventory_index_map[slot] or tt)
 	end
 end
 
@@ -191,7 +191,7 @@ function public.set_shopping_tooltip(slot)
     end
 
     if tooltips[1] then
-        tinsert(tooltips[1], 1, {left_text='Currently Equipped', left_color={ 0.5, 0.5, 0.5 }})
+        tinsert(tooltips[1], 1, temp-object :left_text 'Currently Equipped' :left_color(temp-{.5, .5, .5}))
         ShoppingTooltip1:SetOwner(GameTooltip, 'ANCHOR_BOTTOMRIGHT')
         load_tooltip(ShoppingTooltip1, tooltips[1])
         ShoppingTooltip1:Show()
@@ -199,7 +199,7 @@ function public.set_shopping_tooltip(slot)
     end
 
     if tooltips[2] then
-        tinsert(tooltips[2], 1, {left_text='Currently Equipped', left_color={ 0.5, 0.5, 0.5 }})
+        tinsert(tooltips[2], 1, temp-object :left_text 'Currently Equipped' :left_color(temp-{.5, .5, .5}))
         ShoppingTooltip2:SetOwner(ShoppingTooltip1, 'ANCHOR_BOTTOMRIGHT')
         load_tooltip(ShoppingTooltip2, tooltips[2])
         ShoppingTooltip2:Show()
@@ -237,7 +237,7 @@ function public.load_tooltip(frame, tooltip)
             frame:AddLine(line.left_text, line.left_color[1], line.left_color[2], line.left_color[3], true)
         end
     end
-    for i =1,getn(tooltip) do -- TODO why is this needed?
+    for i=1,getn(tooltip) do -- TODO why is this needed?
 	    _g[frame:GetName()..'TextLeft'..i]:SetJustifyH('LEFT')
 	    _g[frame:GetName()..'TextRight'..i]:SetJustifyH('LEFT')
     end
@@ -357,24 +357,22 @@ end
 
 function public.item(item_id, suffix_id)
     local itemstring = 'item:'..(item_id or 0)..':0:'..(suffix_id or 0)..':0'
-    for name, itemstring, quality, level, class, subclass, max_stack, slot, texture in present(GetItemInfo(itemstring)) do
-	    return {
-	        name = name,
-	        itemstring = itemstring,
-	        quality = quality,
-	        level = level,
-	        class = class,
-	        subclass = subclass,
-	        slot = slot,
-	        max_stack = max_stack,
-	        texture = texture,
-	    }
-    end
-    return cache.item_info(item_id)
+    local name, itemstring, quality, level, class, subclass, max_stack, slot, texture = GetItemInfo(itemstring)
+    return name and {
+        name = name,
+        itemstring = itemstring,
+        quality = quality,
+        level = level,
+        class = class,
+        subclass = subclass,
+        slot = slot,
+        max_stack = max_stack,
+        texture = texture,
+    } or cache.item_info(item_id)
 end
 
 function public.item_class_index(item_class)
-    for i, class in {GetAuctionItemClasses()} do
+    for i, class in temp-{GetAuctionItemClasses()} do
         if strupper(class) == strupper(item_class) then
             return i, class
         end
@@ -382,7 +380,7 @@ function public.item_class_index(item_class)
 end
 
 function public.item_subclass_index(class_index, item_subclass)
-    for i, subclass in {GetAuctionItemSubClasses(class_index)} do
+    for i, subclass in temp-{GetAuctionItemSubClasses(class_index)} do
         if strupper(subclass) == strupper(item_subclass) then
             return i, subclass
         end
@@ -390,7 +388,7 @@ function public.item_subclass_index(class_index, item_subclass)
 end
 
 function public.item_slot_index(class_index, subclass_index, slot_name)
-    for i, slot in {GetAuctionInvTypes(class_index, subclass_index)} do
+    for i, slot in temp-{GetAuctionInvTypes(class_index, subclass_index)} do
         if strupper(_g[slot]) == strupper(slot_name) then
             return i, _g[slot]
         end
@@ -424,7 +422,6 @@ function public.bag_type(bag)
 	for link in present(GetInventoryItemLink('player', ContainerIDToInventoryID(bag))) do
 		local item_id = parse_link(link)
 		local item_info = item(item_id)
-		log(link, item_id, item_info, item_info.subclass)
 		return item_subclass_index(3, item_info.subclass)
 	end
 end
\ No newline at end of file
diff --git a/util/scan.lua b/util/scan.lua
index 76bf690..4806bb2 100644
--- a/util/scan.lua
+++ b/util/scan.lua
@@ -1,4 +1,4 @@
-module 'scan_util'
+module 'scan_util' import 'info'
 
 function public.find(auction_record, status_bar, on_abort, on_failure, on_success)
 
@@ -15,17 +15,13 @@ function public.find(auction_record, status_bar, on_abort, on_failure, on_succes
         local blizzard_query1 = copy(auction_record.blizzard_query)
         blizzard_query1.first_page = auction_record.page
         blizzard_query1.last_page = auction_record.page
-        tinsert(queries, {
-            blizzard_query = blizzard_query1,
-        })
+        tinsert(queries, -object :blizzard_query(blizzard_query1))
 
         if auction_record.page > 0 then
             local blizzard_query2 = copy(auction_record.blizzard_query)
             blizzard_query2.first_page = auction_record.page - 1
             blizzard_query2.last_page = auction_record.page - 1
-            tinsert(queries, {
-                blizzard_query = blizzard_query1,
-            })
+            tinsert(queries, -object :blizzard_query(blizzard_query2))
         end
 
         local item_query = item_query(auction_record.item_id, 1, 1)
@@ -41,7 +37,7 @@ function public.find(auction_record, status_bar, on_abort, on_failure, on_succes
         queries = queries,
         on_scan_start = function()
             status_bar:update_status(0, 0)
-            status_bar:set_text('Searching auction...')
+            status_bar:set_text 'Searching auction...'
         end,
         on_start_query = function(query_index)
             status_bar:update_status((query_index - 1) / getn(queries) * 100, 0)
@@ -51,20 +47,20 @@ function public.find(auction_record, status_bar, on_abort, on_failure, on_succes
                 found = true
                 ctrl.suspend()
                 status_bar:update_status(100, 100)
-                status_bar:set_text('Auction found')
+                status_bar:set_text 'Auction found'
                 return on_success(auction_record.index)
             end
         end,
         on_abort = function()
             if not found then
                 status_bar:update_status(100, 100)
-                status_bar:set_text('Auction not found')
+                status_bar:set_text 'Auction not found'
                 return on_abort()
             end
         end,
         on_complete = function()
             status_bar:update_status(100, 100)
-            status_bar:set_text('Auction not found')
+            status_bar:set_text 'Auction not found'
             return on_failure()
         end,
     }
@@ -78,9 +74,8 @@ function public.item_query(item_id, first_page, last_page)
         local query = filter_util.query(item_info.name..'/exact')
         query.blizzard_query.first_page = first_page
         query.blizzard_query.last_page = last_page
-        return {
-            validator = query.validator,
-            blizzard_query = query.blizzard_query,
-        }
+        return -object
+            :validator(query.validator)
+            :blizzard_query(query.blizzard_query)
     end
 end
\ No newline at end of file