How do you soften old golf club grips?

Answer 1

Simply warm soapy water! Work from the club head end up to the butt of the grip, use a cloth just to clean the build up away and then use a clean towel to dry it, working from the bottom up.

Answer 2

sand paper it (course type) and clean using water n dish cleaning liquid. if it still doesnt work, then it's time to change grips. :)