Most goods sold in tianguis are small items that customers can carry away. In many of these markets, vendors selling similar items group together. This has advantages for both buyer and seller, as it provides a wider variety of products than would a single merchant. It also lets shoppers know where to find a particular item. Certain goods are more prone to this such as produce, meat, and certain specialized or craft items. However, exceptions to this occur because a vendor cannot afford space in the area or because he or she is looking for convenience shoppers who are not looking to bargain. Most tianguis sellers, especially produce sellers, arrange their wares in certain arrangements, such as in baskets, or into neat piles to make their wares more attractive.