There are a lot of musicians out there. Those who are in the field of music know how difficult it is to catch a break, as there is so much competition. Keeping up with rent and bills in a creative career, especially one that only provides income spontaneously from various gigs, can be rather difficult.
If you do start playing frequently for this and that, your worst enemy suddenly becomes staying in tune rather than money troubles. Putting on a show that is slightly off key will turn what could be fans into rather unsavory critics quite quickly. A tuner is not terribly hard to come by, but keeping up with buying batteries can be a bit bothersome. This is why the Solar Guitar Tuner is so handy. It does cost about $40, but with a good charge, this thing will run for bout 6 hours continuously. If you don’t have a sunny day, you can always charge it up via USB.