I have a couple of binders full of notes! My first one was from when I was developing my base recipes. I used soap calc and wrote everything down on the printed recipe: Date the recipe was made; how the oils were mixed; temps; FO (name, supplier, amount used, when was it added-trace, to warm oils, etc.-did it have any problems-acceleration, ricing, seizing); what colorants and the amounts; what mold I used; did I insulate or CPOP; did I gel; did it overheat; when did I umold; what the finished soap looked like; zap check results; were there any changes during cure (color, etc); how was the soap when used - lather, slip, too dry?, etc.
Now that I have my 2 base recipes, I have a new binder and just keep one printed copy of each in a sheet protector and use a dry erase marker to check off ingredients as I add them. I keep plain notebook paper behind each recipe and keep batch notes on that.
I also keep a separate list of the FOs & EOs that I use (for quick reference about a fragrance). I list the FO name, the supplier, which recipe it was used in & how much PPO, the date used, and any problems/comments about the FO-acceleration, discoloring, scent too strong, not strong enough). This has been very handy when I've ordered the same FO from different suppliers - I know right away which one I liked better, if one had problems and the other didn't...you get the idea.
