A store is a place where food or supplies are commonly stored. These are great for raiding, but not advised to be used as a base as others will also think of raiding it. They have many supplies such as food, water, weapons, and materials. Examples of stores are Target, Walmart, and many others. Chances are that there might be zombies and raiders there, so you have to make sure it's clear before looting. Fortifying stores can be very hard, depending on how big the store is. There are few exits, so it may be difficult to escape in certain situations.