Here is a cool tip I read on about.com for dining out. Simply, ask the waiter to wrap up half of the food before you dig in. I know it sounds like a radical idea, but I have tried it and it really is a good way to go. Try It!
That's a great idea. That way, not only are you eating half the portion but you're taking some of it home for another meal. It's almost like making money and saving time, as you won't be cooking. A lot of times, when I'm eating at home, I try to cut the suggested portion size in half. This is a great way to do that when dining out.