9. Stay hydrated. Once at work, drink plenty of water throughout the day to help keep you awake, alert and less sallow-looking. Or for sports drinks such as Lucozade or Powerade, or even Diarolyte. These all contain electrolytes which help rehydrate faster than just water. Alcohol dehydrates, so put back in what has been taken out. Plus, lots of fluids gives you plenty of reasons to go to the water cooler and the bathroom, giving you the chance to stretch your tired legs.
Initially, sip the water slowly. If you're feeling like you're going to vomit, anything you consume can trigger the need to throw up. As the day wears on, you'll probably be able to drink more and faster.