I do a lot of tinkering and hacking, and these are a few programs that I thought might be interesting to others. They are all open source, so you are welcome to modify them and distribute your modifications.
If you find any of these useful, send me an email. I'd be curious. Patches and bug reports are also welcome, though as I maintain these for my own use, I don't guarantee any action. :)
Finally, while I don't take any special pride in their non-portability, I've only tested them on Debian Linux, and results may vary on other platforms.