I'm curious.
What's stopping you from charging it during the course of your day?
i'm a college student and dont exactly have the time to or accessibility to charge it while in between classes or doing other stuff.
i am so used to having my env touch just last all day and then all night that i never thought id have to charge my droid during the day.... i like the phone and wish i knew how to manage things better just so i could get my battery to last longer
If you have a laptop in class you can charge it then, if you have a vehicle you can charge it there.
A smartphone is a mini computer, your laptop won't last all day either, neither of mine last all day anyway.
You can lower the frequency that your email checks, turn down the screen brightness, turn off wifi, BT, and GPS if you aren't using them. I think widgets use more power too, if you're using a lot of them, ditch them.
If you have a case for it, make sure it doesn't have a magnet, magnets put the droid in car dock mode, it will still be powered on.
You can also customize the batter usage by having it turn off syncing during certain hours and turn off data after a specified time.