I got a Body Bugg for Christmas. You may have seen these on Biggest Loser. If you don't know what that is, it is a device you wear on your arm that monitors the calories you burn and how many steps you take. Then you download it to your computer and log your daily food. It helps you make sure you are burning more than you are consuming.
I try to download mine when I get home from work but before dinner. This helps me decide how much protein etc I need to make sure I have before the end of the day and also if I need to jump on the treadmill to burn more calories before the end of the day. It is a great gadget!