Another option is to run a strip of thin tape along the whole side of the fretboard and mark where necessary. I've been thinking about doing this with fluorescent tape.
FYI, on one of my first gigs with an all original band I was having trouble remembering keys an a couple of changes. I put masking tape on the back of the neck and wrote myself a cheat sheet.
FYI, on one of my first gigs with an all original band I was having trouble remembering keys an a couple of changes. I put masking tape on the back of the neck and wrote myself a cheat sheet.


