We work hard to keep clean coops. We actually have three separate coops on the property, and this is a trick we have successfully implemented in all three. We discovered early on that if we cut tarps to the exact sizes of the floor space under the roost bars, it made cleaning so much easier. The poop area under the roosting bars can be completely cleaned out every single day. This drastically reduces flies and other insect problems, and all but eliminates any smell issue. It is also much cheaper because we can remove just the tarp with the waste on them, leaving the bedding underneath clean and fresh. This is a great trick, especially in the summer when the heat, combined with ammonia smell can become quite strong in smaller roosting areas.