How often should I change my strings?

There is no set rule for how often you should change your strings. If you have strings which are worn, flattened, kinked, corroded, rusted or mucked up with sweat, grease and grime, then it is definitely time to change your strings. Really, the only other determining factor should be that if your strings are no longer giving you the tone, brightness and response that you desire, then it's probably time to change them.