Store Fronts
Store front can be used in many ways. If your one of several businesses in a row, it can be used to identify where you are and make you easy to find. Another option is to list your services and showcase your work. It helps the customer know and understand what your business does and what you can do for them. You can advertise what you do, what brands you sell, what specials you have, all while educating your potential customer.
Restaurants can advertise daily/weekly specials, retailers can advertise seasonal items, clothing companies can showcase their clothes, and the list goes on. It is free space that needs to be selling for you.