My best trick is going into notification center and removing as many items as possible. Once that is complete, go into your list, into each item, and make sure that even though it is not in notification center, all the switches are toggled to off. Sometimes apps that are not included in notification center are taking up battery. I haven't figured out if iOS 7 fixed this feature yet but it made a big difference in 6 so I just make sure of that from now on.
Also, I'll toss in one for the battery itself. I don't care to argue with people about how the device "cycles" when at 100%. So if you want to keep it plugged in, go ahead - I won't say you're wrong. However, I unplug mine right away. When I leave it plugged in, my device stays warm. If you want to argue that heat prolongs the life of electronics, that's your call!
Also, I'll toss in one for the battery itself. I don't care to argue with people about how the device "cycles" when at 100%. So if you want to keep it plugged in, go ahead - I won't say you're wrong. However, I unplug mine right away. When I leave it plugged in, my device stays warm. If you want to argue that heat prolongs the life of electronics, that's your call!