diff --git a/swap_meet/clothing.py b/swap_meet/clothing.py
new file mode 100644
index 000000000..900ef0062
--- /dev/null
+++ b/swap_meet/clothing.py
@@ -0,0 +1,10 @@
+from swap_meet.item import Item
+
+
+class Clothing(Item):
+
+    def __init__(self, condition = 0):
+        super().__init__(category= "Clothing", condition = condition)
+
+    def __str__(self):
+        return "The finest clothing you could wear."
\ No newline at end of file
diff --git a/swap_meet/decor.py b/swap_meet/decor.py
new file mode 100644
index 000000000..8fc96c1fb
--- /dev/null
+++ b/swap_meet/decor.py
@@ -0,0 +1,9 @@
+from swap_meet.item import Item
+
+class Decor(Item):
+
+    def __init__(self, condition = 0):
+        super().__init__(category= "Decor", condition = condition)
+
+    def __str__(self):
+        return "Something to decorate your space."
\ No newline at end of file
diff --git a/swap_meet/electronics.py b/swap_meet/electronics.py
new file mode 100644
index 000000000..273058634
--- /dev/null
+++ b/swap_meet/electronics.py
@@ -0,0 +1,9 @@
+from swap_meet.item import Item
+
+class Electronics(Item):
+
+    def __init__(self, condition = 0):
+        super().__init__(category= "Electronics", condition = condition)
+
+    def __str__(self):
+        return "A gadget full of buttons and secrets."
\ No newline at end of file
diff --git a/swap_meet/item.py b/swap_meet/item.py
new file mode 100644
index 000000000..cafde4946
--- /dev/null
+++ b/swap_meet/item.py
@@ -0,0 +1,21 @@
+class Item:
+    def __init__(self, category = "", condition = 0):
+        self.category = category
+        self.condition = condition
+
+    def __str__(self):
+        return "Hello World!"
+
+    def condition_description(self):
+        if self.condition == 0:
+            return "This should have been recycled."
+        elif self.condition == 1:
+            return "This is really bad."
+        elif self.condition == 2:
+            return "This is in somewhat okay condition."
+        elif self.condition == 3:
+            return "This is in decent condition."
+        elif self.condition == 4:
+            return "This almost looks new!"
+        elif self.condition == 5:
+            return "This looks so new! Very nice."
\ No newline at end of file
diff --git a/swap_meet/vendor.py b/swap_meet/vendor.py
new file mode 100644
index 000000000..1b316d455
--- /dev/null
+++ b/swap_meet/vendor.py
@@ -0,0 +1,72 @@
+class Vendor:
+    def __init__(self, inventory = None):
+        if inventory == None:
+            self.inventory = []
+        else:
+            self.inventory = inventory
+        
+    def add(self, item):
+        self.inventory.append(item)
+        return item
+        
+
+    def remove(self, item):
+        if item in self.inventory:
+            self.inventory.remove(item)
+            return item
+        else:
+            return False
+
+    def get_by_category(self, category):
+        category_list =[]
+        for items in self.inventory:
+            if items.category == category:
+                category_list.append(items)
+        return category_list
+
+#Wave 3 *****************************
+
+    def swap_items(self, friend_vendor, my_item, their_item):
+        if my_item not in self.inventory or their_item not in friend_vendor.inventory:
+            return False
+        self.remove(my_item)
+        friend_vendor.add(my_item)
+        friend_vendor.remove(their_item)
+        self.add(their_item)
+        return True
+
+
+#Wave 4 **********************************
+
+    def swap_first_item(self, friend):
+        
+        if len(self.inventory) == 0 or len(friend.inventory) == 0:
+            return False
+        first_item = self.inventory[0]
+        self.remove(self.inventory[0])
+        self.add(friend.inventory[0])
+        friend.remove(friend.inventory[0])
+        friend.add(first_item)
+        
+        return True
+
+#Wave 6 ***************************
+
+    def get_best_by_category(self, category):
+        highest_condition = 0
+        highest_item = None
+        for item in self.inventory:
+            if item.category == category:
+                if item.condition > highest_condition:
+                    highest_condition = item.condition
+                    highest_item = item
+        return highest_item
+
+
+    def swap_best_by_category(self, other, my_priority, their_priority):
+        best_in_my_inventory = self.get_best_by_category(their_priority)
+        best_item_in_other = other.get_best_by_category(my_priority)
+        if best_item_in_other == None or best_in_my_inventory == None:
+            return False
+        self.swap_items(other, best_in_my_inventory, best_item_in_other)
+        return True
\ No newline at end of file