 The guitar tech may hand fresh towels to the guitarist so that the guitarist can remove sweat from the hands and ensure that the guitarist has ready access to bottles of cool water or other wet beverages.If a guitar technician is working for a guitarist who uses picks, the guitar tech may lay out a variety of picks on a guitar amplifier or tape the picks to the mic stands with double-sided tape, so that they are within easy reach.At the end of the show, the guitar tech disconnects all of the patch cords, cleans the instruments and puts them back into their cases.