Stores are special Structures with 10 slots where items can be offered for sale. An owner can offer items that are not bound for a price in spices. All spices have the same trade value. Visitors can purchase an item on sale if they are carrying the number of spices asked for. After a sale, the seller can pick up the spices from the Store, but no record is kept of what was sold. A Vending stand has the same function but has 5 slots.
Items for sale can also be searched at an Auction House where the buyer can purchase items remotely, but a 20% delivery fee will be added (rounded up).