Keeping your garbage cans clean, free of harmful germs and smelling clean and fresh can be easy. The average family of 3 generates about 40 pounds each week - and that's a lot of trash to stink up your house. To keep your garbage cans looking and smelling clean, rinse them weekly with a solution of borax and warm water. To keep germs at bay, spray the inside of the can with a 10 percent bleach solution. Keeping your garbage can clean is important to your health and to the ambiance of your home.