In case you are trying to tighten your belt literally and not just by saving money Calorie Lab might be the place for you. It is a database of calories for common restaurant and prepared foods. While it does not have calorie counts for common foods like an apple, 4 ounces of chicken breast, etc. it does have information on Big Macs, Krispy Kremes, and Cokes -- all of which regularly show up around my office unfortunately.
It's a good place to visit before you go out to lunch if you want to get an idea of how many calories you'll need to work off later. You can also look up how many calories some everyday activities burn and compare that to foods with equivalent calories.
I learned, for example, that 30 minutes of moderate sexual activity burns up the calories contained in a hot dog with pickle relish. Of course, it takes 2 hours to burn off a medium-sized slice of italian bread. You can also read the very funny article on the variations in calories burned for certain sexual activities.
You can also read the newest results in the "How Fat is your State" ranking. I guess this would be a good time to get up and do a few laps around your cube or something.
Too busy campaigning in South Carolina to read Download Squad this week? We understand. Running for President is tough. Don't worry though, we've got you covered. Tell one of your aides to hold all your calls and take a few to catch up on what's happening around your favorite Squad. 
