Quick Guitar Tip!
Do you use active pick-ups (such as EMGs) in the your guitar and your sound is sounding fuzzy, harsh or plain weird lately?
Chances are you need a new 9 Volt battery. Alkaline batteries are best.
This is a simple, but often overlooked item. I'm pretty certain that if you leave your guitar plugged in your battery is constantly getting drained, so make sure to unplug your axe after you are done playing it through an amp. If you have a habit of leaving your guitar plugged in - before you know it your guitar will be out of juice. This results in a weak tone that is full of trebely fuzz.
This small maintanance item is often forgotten since we don't change batteries in the guitar that often, but keep this in the back of your mind. Good luck.