You know that trick we do with the physical stuff in our lives? You should do it on the computer too.
Take a while today to look around on your harddrive and find those things you never use and don't want.
Things to watch for that can often be deleted or backed up for your archives:
– all the other pictures from that digital photo session that didn't come out as good as your favorites
– programs you never use
– old email archives you never search in
– really old backups that are all data that has changed since
– saved chats with that guy/gal things never actually worked out with
Follow the appropriate instructions for your kind of computer for
uninstalling programs – and do be careful about system files; if you
don't know what they do, get help before deleting.
Bonus tip: Here's a clever technique for "sentencing programs to death row" (found on Lifehacker)
Discardia 