Prep in advance and set a routine
The less you have to ask your brain to function in the morning, the better off you'll be. That's why pretty much everyone I spoke with said to plan, plan, plan, and do as much prep work as you can the night before.
Sarah Caro, vice president at Mugsy PR, swears she can't remember how she got into morning exercise, but knows it's a lot harder if she doesn't stick to her routine, "My night-before routine consists of setting out my gym clothes, shoes, heart rate monitor, towel, keys, wallet, and phone in my home office. If I'm planning on taking a group fitness class, I schedule it into my calendar and set a reminder."
Then in the mornings, she always follows the same steps, "I get up without hitting snooze, turn off my alarm, and leave the bedroom, closing the door behind me. I head to the kitchen for some fruit and a big tumbler of water, then go to the office to do some online reading and Facebook perusing while hydrating and eating. That helps me wake up and gives me a little 'me time' before I get dressed and head out."