Wake up before noon
There's a fine line between "sleeping one off" and falling into a coma. Comas are even harder to recover from than hangovers, so even if you wake up and do nothing but sit on your butt instead of lay on your back, you're still helping your cause. Note: Adding one hour for every hour you were out past 5am is probably a good idea.
Don't wake up with your face in pizza
If it's just hovering inches over the pizza, that's okay, but the feeling of failure associated with actually being in the pizza can last for weeks, causing you to want to do nothing but fall into the aforementioned coma.