I wanted to restress this technique. It was touched on a few weeks ago with the Eat like a hobbit thread that Nevada posted too.
For the last 3 weeks I have been eating smaller meals and having a snack every 2 to 2.5 hours of atleast 100 calories, this has kept my metabolism roaring and ready to go. Besides the benefits of metabolism, there are 2 great side effects of doing this. You never get the afternoon sleepy's, and you aren't hungry at all. Since the snacks are so small, even if you aren't hungry, you can pop them in without feeling like you stuffed yourself. It reall has worked like a charm for me. Here is my schedule for anyone else who wants to try but doesn't know quite how to do it.
7:30 am eat a light but protien packed breakfast (oatmeal or egg whites ...etc.)
10:00 am eat my morning snack, 1 medium sized apple or pear with skin and a light n fit yogurt
12:15 pm eat lunch (usually a weight watchers meal or something else that totals about 300 cals)
2:30 pm drink a V8 and eat 1/2 an 8 oz. bag of mini pretzels (this ends up being about 185 cals)
4:30 very light snack (usually some fruit or something else around 60 cals)
6:30 Dinner Since you aren't starved you don't need quite as big a meal (450 cals or so for me)
(if your like me and sit in front of the tv when you get home at night, lay off the carbs for dinner,
unless you work out at night and your body can burn them off)
now if you total that up its somewhere in the neighborhood of 1300 cal a day (way under for someone my size), which is why I usually have a snack of some kind of seed or nut at night.
This plan works so well for me. I hope it works for you.