There are several projects I started some time ago - and there are even some I finished :). The most notable of them are probably Dizzy and Guckets. Aside from that I wrote a mass of scripts - of which alternatives exist, as I found out after writing them, but that does not prevent them from doing their job ;).
There is a lot of software I've written or that I have started to write at some point in time. My Git repositories contain a lot of software that has not received its own page here yet. Also check out my repositories on Github.
Dizzy is a graphical demo that makes you dizzy using rotating textures. It can be used as a screensaver. Visit its page
A game I created, which is about pouring water around between buckets without any method of measuring. People seem to like it. Visit its page
Most of these are nonsense. I don't use those a lot anymore, however they are still listed here, in case someone is interested, and for completeness.
For more useless and useful scripts, see my repository of random code.
A small stub library allowing you to save a lot of space if you don't need your computer to babble thousands of languages. Tested with Glib and Irssi, drop-in replacement. Visit its page
Bored of hacking up small test programs to answer this simple question, I wrote a small tool that writes these test programs for me and reports the size of that C type back to me. Here's what's special about it:
% sizeof -iGL/gl.h GLdouble
8% LDL=wine CC=i586-mingw32msvc-gcc sizeof -iwindows.h RECT
16