Watch the Replacing A String online guitar lesson by Trey Alexander from Rock Guitar For Beginners
Electric tuners are a must have. They have many brands on the market now from Korg to the Intellitouch Tuner. There are so many good tuners so the best thing to do is go to the local music shop and check them out. They will give an easy and quick read out so that you are able to tune up quick and precise. This will be an asset to you and you should always carry one with you.
One of the most frustrating things that I can remember doing is popping a string. Especially when you just get your guitar and you are watching a video like this one and we think we are almost in tune and "POP". Then we make sure we still have our eyeballs and say "crap what am I going to do now"? "MMMOOOOOOMMMM!!!!! Or Hunnnnnnnny, can we go to the music store?" and then she comes and says "you already broke the thing". So before you do that let me help you out. I am going to demonstrate to you how to change your string and then I am going to show you some tricks to staying in tune.