The 21 Essays to SHE written and first published online in 1991 by CEO (Cynthia Ewer Organized) are a guide to using the system.
http://organizedhome.com/shes-organized ... d-with-SHE
Site below discusses using Avery 2x3 shipping label sheets to quickly print labels to affix to 3x5.
The link at the bottom of the article, "blank work document" is a free template.
Printable templates for 3x5s
Hipster PDA (3x5 cards on the go)
History/explanation of the tongue-in-cheek concept, plus links
Description/How-tos by acknowledged “inventor”, Merlin Mann, plus links
http://www.43folders.com/2004/09/03/int ... ipster-pda
"Catalog Card" Generator (vintage library look)
example of use of "Catalog Card"