My classmates are jealous because I can still wake up 15 minutes before class and make it to a lecture roughly on time (if I jog just a little). Not like I make a habit of it, but you know... stuff happens. I recommend letting yourself go.
I attribute these factors to my overwhelming success:
1. Low-maintenance haircut
There's a reason why girls spend so much on haircuts, cause when you do it properly, all it take is a quick finger comb. Also: hats.
2. Forgo matching clothes
Some day I will have to grow out of jeans and T-shirts. But not yet.
3. Quick Breakfast
I recommend acquiring a taste for instant oatmeal. When I was little, I used to pretend I was on safari in the backyard, and had packed only dried food, to save space. I would then tear open a tiny corner of the instant oatmeal packet, fill it with water, shake, and eat it while I was on my safari. When your standards are that low it's hard not to find food in the house that can be consumed in seconds.
4. Leave everything in the same place
Routine! I like to put everything in my backpack (or at least near it) the night before, and I usually leave my lunch in the same place in the fridge. Then I just have to push autopilot when I wake up, zombie drag myself through a pattern in the house, and by the time I wake up, I'm already in class taking notes.
My personal record was waking up at 7:57 AM and making it to an 8 AM class before the instructor started lecturing (he started a few minutes late).