I carry a write in the rain 3x5 top spiral notebook for every day info, lists etc... I have a system, using both sides front and back pages, in a certain order for different info... fill a page, and all marked off, tear the page out, and flip the next page over. When I get down to a couple plastic covers left, i cut the back one up to keep the rulers off ii for around the house, and get a new one. One lasts me about 4 or 5 months. I also carry a moleskine or equivelant at times for a modified GTD system for long term projects, some journaling and collecting commonplace information. (commonplace books are fun to do; http://en.wikipedia.org/wiki/Commonplace_book I collect info on the go, then transfer it to a large 8.5x11 hardbound book at home later. ) I carried a custom D*I*Y planner version of the hipster PDA for a while; Hipster PDA= 3x5s and binder clip. wiki.43folders.com/index.php/Hipster_PDA http://www.43folders.com/2004/09/03/introducing-the-hipster-pda D*I*Y planner, custom printable planner templates; http://www.diyplanner.com/templates/official/hpda It worked fabulously for me, but printing and customizing cards go to be a bit of a hassle, and I just phased it out eventually. G.