I also carry a small notebook that I keep adding stuff too.

Mine is really multi-purpose so I have a farily long list of emergency contact numbers, HAM radio frequencies, CERT member contact numbers and addresses, Inventory lists of my various kits, bus schedules, notes from various classes I have taken (CERT). It just keeps growing. I print mine out double sided in a 3x5" format, staple and stuff into my notebook. This way I can update at will and print on Rite-in-the-rain. I have included a few drawings of knots etc that might be useful.