Composting is a practical way to use kitchen scraps, leaves and old plants to make a rich, organic fertilizer for the garden. Compost bins can be purchased at most gardening centers, but they can be made by using a large plastic trash can with a fitted lid that can be snapped into place.
Select a sturdy plastic trash can -- an outdoors, not kitchen type -- that has a lid that fits snugly and locks. The trash can must be big enough to add dry and wet ingredients, yet still allow you to turn it on its side.
Turn the trash can upside down and drill holes all over the bottom of the can. Use a drill bit that is 1/2 to 1 inch; anything smaller would not allow for proper drainage. Space the holes 1 to 2 inches apart.
Drill holes on all sides of the trash can. The lid does not need to have holes drilled into it. Space the holes 1 to 2 inches apart.