In windows you have a program called Diskcleanup. You can also add on other utilities like Ccleaner. I have been wondering If or what programs in Linux does the samething for the Linux system. Also How often a person should do it? I've already discovered on my system two programs for cleaning up stuff. But as far as what they are cleaning and if it is good or not, I don't know. The One program is called Janitor. The other I found in the ubuntu software center. It is called: Bleachbit. My goal here is to get rid of Cache and other unneeded stored information. Also on Windows I use CCleaner to get rid of flash cookies. How do you do that on Linux?