[FireSquid2006]

Not just for math kids--good for anyone.

I have a "daybook" thats always with me. Each day gets a header with the date. I treat it as a "cache" for what I'm working on. Math problems for school, jotting down ideas for programming, having a dialog with myself while debugging (also a good tool).

When one gets full you put it on the shelf. Fun to look back on what you were working on a month/year/5 years ago