|Daily log of food consumed|
The very next article I wrote was about keeping a food journal - and the various resources available online. My favorite resource for tracking calories consumed is My-Calorie-Counter. Initially, I used this resource extensively to figure out what I should be eating, and how much I should be eating in a day.
Both these resources have helped me to reach most of my fitness goals. Of course, keeping track of a food diary is not practical on a daily basis. It is something we should do for 1 or 2 weeks, and then use that knowledge to guide us for the rest of the way. Since we tend to go astray after some time, it's a good idea to come back to the food journal every few months to keep ourselves in check.