Every time I change my electric and acoustic guitars' strings, I take the opportunity to lubricate the hardware contact points. These are the string trees, nut slots and even the bridge saddle grooves ...
A guitar tuner makes sure that all of your strings (whether you play electric, acoustic, bass or ukulele) are in tune with each other, so that when you play a chord, the intervals within it are ...
fresh acoustic guitar strings (naturally), some wire snips, and a string winder for speedily engaging your tuning pegs. Oh, ...