We're introducing Item Vendors, Items, and Inventories into the forum, you can find the Item Vendor in City Hall, if you want a weapon, traveling gear, or even a box of cigarettes.
"Okay, I bought Items, now what?"
Well, now you will go ahead to Inventory Creation and create a post that says
"Zandain's Satchel" or "Alet's Bag" or "Cage's Inventory"
basically just your name, and something you carry it in.
You will use the format posted under the sticky, and whenever you get a new item, go ahead and put it there, that simple.