Make Your Own Guitar Fretboard Cleaner And Polisher

Your guitar should meet one condition before you start this project: It should need to be restrung. If it doesn't need to be restrung; postpone this project. There's no sense in wasting still-good strings, right?

I use rice vinegar, but any neutral vinegar will do (don't use balsamic) because it is a wonderful cleaning agent. Rub the vinegar over the fret board carefully as you replace each string. Note: Never take all of your strings off at once while restringing. It could damage your neck and action. Each time you've finished cleaning a section of the fretboard, dab some olive oil on a cotton ball and repeat so that your fretboard is polished. Do this for the entire fretboard.

It's always worked like a charm and I can't imagine ever putting forth the money to buy a store-bought product that does the same job but uses more packaging, resources and who knows what chemicals.