Shapewear and a steak day. Two eggs in the for the first meal, an apple and large steak for the rest of the day, lots of water. It is usually good for a few pounds of loss and flushes my system better than fruits and veggies. I don't recommend it for all but small weight corrections or an inch of bloating off, but it has worked well for me given the above caveats.
If you have more than a week, go Atkins Induction with your eating in terms of food/low glycemic load, that works amazingly well, too.
ETA - basically exactly what Banananutmuffin and John said
