Hawk Sugano has devised a system he calls Pile of Index Cards (PoIC). It’s a combination of a "brain dump" (emptying one's mind of all important information by writing it down), long-term storage for reference, and David Allen’s GTD method.
Index Card a Day Project - mixed media, sketchbook drawings, art journal project by Kate Hadfield. Patterns and drawings created on index cards, one a day for 61 days! Challenge hosted by Daisy Yellow Art