diff --git a/items.py b/items.py
index 06a58ee..a39a98a 100644
--- a/items.py
+++ b/items.py
@@ -110,6 +110,8 @@ BEETROOT_SEEDS_ID = get_id('beetroot_seeds')
 PUMPKIN_ID = get_id('pumpkin')
 
 EMERALD_ID = get_id('emerald')
+BERRIES_ID = get_id('sweet_berries')
+IRON_INGOT_ID = get_id('iron_ingot')
 
-NEEDED_ITEMS = BED_IDS | SHOVEL_IDS | AXE_IDS | FOOD_IDS | set([CHEST_ID, PUMPKIN_ID]) 
+NEEDED_ITEMS = BED_IDS | SHOVEL_IDS | AXE_IDS | FOOD_IDS | set([CHEST_ID, PUMPKIN_ID, BERRIES_ID, IRON_INGOT_ID])
 WANTED_ITEMS = SAPLING_IDS | set([NETHERWART_ID, CARROT_ID, POTATO_ID, WHEAT_SEEDS_ID, BEETROOT_SEEDS_ID])
diff --git a/jobs.py b/jobs.py
index 7c86269..906a315 100644
--- a/jobs.py
+++ b/jobs.py
@@ -954,8 +954,17 @@ class CacheItemsStates:
 
     def move_items(self):
         if self.g.item_lock: return
-
         w = self.g.window
+
+        if not w:
+            print('Didnt get a window, aborting')
+            self.state = self.cleanup
+            return
+        if w.data.window_type != mcdata.SINGLE_CHEST:
+            print('Got wrong window, aborting')
+            self.state = self.cleanup
+            return
+
         w_info = mcdata.WINDOWS[w.data.window_type]
         w_inventory_slots = w_info.inventory
 
@@ -1049,22 +1058,32 @@ class GrabSuppliesStates:
             self.state = self.cleanup
 
     def check_supplies(self):
+        
+        # TODO: only visit each barrel once
+        # switch the supplies and barrels steps
+
         for items, limits in self.supplies.items():
             minimum, maximum = limits
             print('Checking items:', items)
             num_items = self.g.game.count_items(items)
             print('Have:', num_items)
 
-            if num_items >= minimum:
-                print('Skipping')
+            if items in self.checked_supplies:
+                print('Already checked, skipping')
                 continue
-            else:
-                self.target_items = items
-                self.maximum_items = maximum
-                self.count = 0
-                self.state = self.find_barrels
-                return
 
+            if num_items >= minimum:
+                print('Have enough, skipping')
+                continue
+
+            self.target_items = items
+            self.checked_supplies.append(items)
+            self.maximum_items = maximum
+            self.count = 0
+            self.state = self.find_barrels
+            return
+
+        self.checked_supplies = []
         print('Aborting, don\'t need any more supplies')
         self.state = self.cleanup
 
@@ -1085,7 +1104,7 @@ class GrabSuppliesStates:
 
         if not len(self.barrels):
             print('No barrels')
-            self.state = self.cleanup
+            self.state = self.no_more_barrels
             return
 
         barrel = self.barrels[0]
@@ -1126,8 +1145,17 @@ class GrabSuppliesStates:
 
     def grab_items(self):
         if self.g.item_lock: return
-
         w = self.g.window
+
+        if not w:
+            print('Didnt get a window, aborting')
+            self.state = self.cleanup
+            return
+        if w.data.window_type != mcdata.SINGLE_CHEST:
+            print('Got wrong window, aborting')
+            self.state = self.cleanup
+            return
+
         w_info = mcdata.WINDOWS[w.data.window_type]
         w_container_slots = w_info.container
 
@@ -1159,10 +1187,14 @@ class GrabSuppliesStates:
     def close_barrel(self):
         print('Closing barrel')
         self.g.game.close_window()
-        self.state = self.cleanup
+        self.g.look_at = None
+        self.barrels.pop(0)
+        self.state = self.choose_barrel
+
+    def no_more_barrels(self):
+        self.state = self.check_supplies
 
     def cleanup(self):
-        self.g.look_at = None
         self.state = self.done
 
     def done(self):
@@ -1173,8 +1205,8 @@ class GrabSuppliesStates:
         self.g = global_state
         self.state = self.idle
 
+        self.checked_supplies = []
         self.supplies = {}
-        self.target_supplies = []
         self.barrels = []
 
         self.target_items = None
@@ -1855,11 +1887,16 @@ class SellToVillagerStates:
 
     def choose_trade(self):
         g = self.g.game
+        w = self.g.window
 
-        if not self.g.window or not self.g.trades:
+        if not w or not self.g.trades:
             print('Didnt get a trade window, aborting')
             self.state = self.cleanup
             return
+        if w.data.window_type != mcdata.VILLAGER_TRADE:
+            print('Got wrong window, aborting')
+            self.state = self.cleanup
+            return
 
         for trade_num, trade in enumerate(self.g.trades):
             in_id = trade.input_item_1.item_id
@@ -1869,6 +1906,7 @@ class SellToVillagerStates:
             price = in_num \
                 + floor(in_num * trade.price_multiplier * trade.demand) \
                 + trade.special_price
+            if price < 1: price = 1
 
             if g.count_items([in_id]) < price:
                 continue
@@ -2125,6 +2163,8 @@ class JobStates:
         self.cache_items_states.silent = True
         self.grab_supplies_states.supplies = {
             tuple([items.PUMPKIN_ID]): (64, 9),
+            tuple([items.BERRIES_ID]): (64, 9),
+            tuple([items.IRON_INGOT_ID]): (64, 9),
         }
         return machines