Love my new phone, but reading about the battery lives everyone is getting...I'm wondering what I'm doing wrong? Took it off charger today at 7, and am down to 80% already. Checked a few websites, Facebook, and that's it. I have screen on auto brightness, turned off GPS and Google location, and still I'm.not getting much battery. I had my phone since Monday and let it run out twice in hopes of the amazing battery life, but so far its average at best, and I figure I must be doing something wrong, esp with people reporting they used phone all day and still have 60% or better. Any tips?