Personally, I prefer Taurus's approach.

When I first started "striking" Quartermaster in the USCG, I grabbed a standard gov't issue notepad and wrote down those items that I had to know, rarely used/needed, but had to have immediate access to when called upon.

Then I started adding notes on CBR Warfare, ASW, AAW, customs and courtesies, comms freqs, signal codes, etc, etc, etc. This notepad started out 1/4" thick and now it is >2" thick.

I am slowly but surely scanning this info into a book (minus some sensitve items). I think that after I get done, I will post a notice & offer it, via e-mail, to ETS'ers.