Last week I finally got rid of my iPhone. I got a Galaxy S4 instead. I googled a bit, but does any of you know a good site / forum / resource to find useful tips on how to customize the OS? So far I found a lot of feature by myself and I like it. You don't need to jailbreak the phone to get options, turn of features, etc. That's great. So far I like the phone a lot too. The only downside so far is that the battery drains really fast. It happens often with new models. However, I suspect that I have too many programs running in the background, etc. Any advice on that topic?