We are quite fond of our travel mugs; we carry our favorite ultra-tight sealed mug to the coffee shop, on day trips, and lots of other places. This Fresh Traveler container is built along similar lines, but it's designed to carry your lunch or breakfast, not your coffee.
We saw this little yogurt thermos over at Uncrate and really liked the idea. It has a separate attached section for granola or fruit; you can grab your milk and cereal or yogurt fixings and eat them on the go.
Of course, we aren't sure if we'd want to pay $45 for this little affair — we are a little more motivated to use our own thermos for yogurt on the go! (Why haven't we thought of this before??)