Its an easy thing to do - fill your hard drive up with crap that is... I'm guilty of it at home sometimes. I'll surf around the internet for little tidbits of information. Maybe come across a good link or a .pdf. Sometimes I'll copy some pics from a camera into a temporary directory thinking I'll sort through them later...
Over time, crap just builds and eventually /home ends up looking more like /pile_of_crap.
I ran into this dirty directory problem a year or so ago on a particular server that was continually filling up at work. Cleaning house can start of pretty simple if you already know where to look, but if the house isn't your primary domicile and you're not quite sure if someone else is going to need that ginormous file over there in the corner, there's only so far you can go when tidying up.
~ AGEDU to the rescue! ~While tidying that server up to free up some resources, I came across a nifty little tool that Simon Tatham created to help out with the aforementioned. The tool is called agedu.
It's pretty simple and easy to use, not overly fancy but not underly lame, and the source is open for the peeking ;)
So, since spring is here, I thought I'd share.
I've managed to use this on both *nix machines and Windows boxes (with a little help from Cygwin) and haven't as of yet had any problems building or running the tool. Its definitely served me well and let me clear our some crap I just don't need. Good stuff!