CCleaner is still the best program of it's kind!
a couple of simple suggestions:
* it would be great to be able to select a folder/drive in Custom Folders, with the option to search all sub-folders for a given wildcard (eg. *.tmp).
at present, we can pick either a specific folder or a filename, but sub-folders aren't an option.
* also, specifying a number of hours or days would be substantially better than just 48 hours.
(eg. you leave work on a friday night and return ~56hrs later monday morning -- with never a hope of finding a backup file, that was deleted immediately on startup; if we had a variable time here, it could be a lot safer).