While most garage flooring ideas require special installations and equipment, this chore is simple enough to execute using supplies you probably already have on hand. Painting a garage floor is an extremely inexpensive way to improve its look, although the task is labor intensive. Before beginning, be sure to repair any cracks with concrete filler and clean the floor thoroughly. Then prime and paint using materials designed specifically for covering floors. Paint is the least durable of all garage flooring options, and you may need to repeat the process in approximately three years.