I'm at various stages of writing a bit of software (designed to be used on a tablet) to keep track of the location of tools & various other bits of useful info - and one of the things I've got in it is a partial set of tapping charts - need to add a few more (e.g. BA), but the main ones - metric, bsw/bsf, unc/unf are covered.
One day, I'll finish it to the point I can share it here...