My 10-year Old Daughter is at her weekly gymnastics class and as much as I like watching her 20-something instructors contort themselves in body suits, it smells like a Stay-Free Maxipad commercial is going to break out in there, so I'm sitting outside on a transformer thinking about this thread. I keep my records on Targets, which I fold in Quarters and bind together with binder clamps by caliber. I write the date, powder charge, CBTO, primer, etc., with a fine point Sharpie on the target either on top or next to the group (if I happen to use the same target for a different rifle chamberd in the same caliber). It's archaic and old school and I often times spill PBR on the targets after the range session but they dry out and it works. I'm too scatter brained to manage anything electronically and my Ritalin is often wearing down by the time I get home from the range so this is the best approach for me.