I was wondering what all kind of prevenative maintance I need to be doing to my guitars. I noticed bottles of stuff at the music store for strings and some other stuff I have no clue what they are for. Me being a leed mechanic for an ambulance company that specializes in P.M. for vehickles... I cant belive I just now thought of things I need to do to take care of my babys...lol... by the way I have and acoustic and electric. Thanks