I have small box in my briefcase where I have 2 breakfast bars. I do not eat at home, therefore, when I have to get to a meeting somewhere, I miss the breakfast (or lunch). This is the time when these bars come very handy.
Actually, I like have them so much that I take them with me for travels abroad. Last time I was in Norway. When we came out from the plane, we had to take the bus very quickly that we did not have any time to buy food or exchange money. The bars were my savers - my wife sinked her teeth into them instead of my arm. <img src="/images/graemlins/grin.gif" alt="" />
So, 500 ml bottle of water and 2 breakfast bars is my everyday carry food when I go to the office (and I have lots of oat meals there in my desk for breakfast). <img src="/images/graemlins/grin.gif" alt="" />