maybe this has been discussed before but I couldn't find it.
Anyways, I've been using ccleaner for a long time and like it. But I usually run it 2,3,4 times in a row and it almost always finds more stuff the 2nd running even the 3rd running of the program, I wish there was a button that I could check and the program would run the number of times I have checked automatically. That way I don't have to restart it each time.