If you're a serious composter, consider a unit with multiple bins. They're available for sale, or you can make your own from wire and wood (try re-purposing a wooden pallet). Use wire on one side to let air circulate around your scraps or clippings, and add a lid that locks or secures to keep critters out. Aim for at least two bins in your unit so you can transfer your materials from one to the other. "Stirring" the pile lets more air reach them and makes it break down faster.