Generally, I can get a complete tune on to one page of mini filofax, though the more complicated multi-part pieces, such as rags, sometimes run to three pages.
Is it really possible to get the whole of Climax Rag on to a lead sheet that is just two sides of one mini filofax page? Yes.
I use only the MINI size because I want portability, simplicity and minimalism. I start with a blank page. I rule stave lines and leave sufficient space between the staves to enter further information, such as chord names and repeat signs.
Where do I find my tunes? I have a sack full of buskers’ books and old printed music. If I need a tune that is not in a book or available on the Internet, I try to pick it out by ear and – using my keyboard – work out the harmonies for myself.
When playing with my friends, I sometimes keep tunes handy, just in case I need to check something.