After I started using Time Machine in Leopard, I quickly found one major drawback. Every hour, regardless of what you are doing, Time Machine starts a backup. It slows the system down, if you back up to a Time Capsule as I do, it slows the network down, and it’s unnecessary. I really only want one incremental backup per day, but this isn’t possible by default. This is where TimeMachineScheduler comes into play