I've been keeping a notebook for years now. Ideas, sketches, meeting notes, quotes, memos, shopping lists, references, recipes; just about everything gets thrown in. Many of the ideas eventually make their way into posts here at Squat Rx, sometimes they are for training myself or others, and sometimes they just sit there waiting.
Clockwise (from top): "decomposing kettlebell", Charlie "the bellhead" Brown,
Kettlebell in Shadow, Kettlebell Ninja, Mr. Kettlehead
Josh Hanagarne (aka The World's Strongest Librarian) suggested that we "do a coffee table book of our doodles and make our fortunes" - sounds fun but I don't know how much of market there is for kettlebell head Charlie Browns...