All it does is remove .deb files for packages you no longer have installed, IMHO something to do a few times a year at most or if you run low on disk space. Cheers, Nick
some of this stuff can be done from within Synaptics package manager. i like to use the Bleachbit cleaner as both root and user. i love using a GUI tools for those things; the less commands i have to commit to memory the better. i use those kind of tools once or twice a week before taking a disk image.
i use bleachbit without root also dont clean your temp files safe side is clean browers cache flash and thumbnails .... it reduce lot of disk space i dont clean apt-get unless it give me problem also i dont mess with temp ....etc cleaned brower flash thumbnails alone give you lot of recover space also once in few 3-4 months you can do is clean free space it delete all deleted files beyond recovery and recent file history if you dont want to keep