I don't know if this has been mentioned before but I thought it was pretty cool. If you hold the bottom sound button for 1-2 seconds it'll turn all the way to 0. I'm not talking about the ringer, but music or other media. Go ahead, try it! Play some music with the music app, and put it all the way to the top. Doesn't matter speaker or headphones. Hold the bottom sound button down for 1-2 seconds and the sound will be muted.