Automatix for Ubuntu
If you're using Ubuntu Breezy (aka 5.10) or Dapper (6.06) there's a handy script you might want to take a look at. Automatix is this neat thingy that does stuff to your Ubuntu system to make it work better.
See how good I am at describing it.
Some of the cool things you can install include w32codecs (for watching porn), mplayer (for watching porn), realplayer (for watching porn), frostwire (for downloading porn), azureus (for downloading porn), wine (for getting drunk while watching porn), plus a whole heap of other stuff that doesn't seem to have much to do with porn for some reason.