If you own a car, you should consider investing in floor mats. Although they are a common investment, they also offer great marketing opportunities. Not only can you place the mats in your car, but you can also use them as a way to advertise your business. Most dealerships will not put them back into the vehicle unless you buy them yourself. This is because they are unable to be held responsible for any accidents or messes they cause, so if you buy them from a store, they cannot be held accountable.