I absolutely hate unecessary files and like to keep my PC as clean as possible. I have another file/history cleansing program which has the option to run every time I exit either Firefox or IE. I love this option because I don't have to worry about remembering to run the program on my own. I would love to see this type of option in CCleaner because personally I like CCleaner better, and the other program has started acting flakey anyway (it's ignoring Firefox cache even though I have it set). For some this might be overkill, but I think there are probably others out there who, like myself, would love this option.
