Up and at 'em

I hate dragging myself from my soft bed at five a.m. But once I'm out on the street or at the gym I'm thrilled that I started my day early and fit in a fabulous workout. The problem comes in the afternoon when I fall asleep trying to edit my latest novel. I know a nap, a walk, or sniffing some peppermint oil is a healthier option but lately I've found myself eating chocolate or chugging a Diet Coke.
What do you do to reenergize yourself?