We're still just doing 25 milers here because of the weather, but I got some Simbree squares www.simbree.com at Bike Expo. I like them because they come in a ziplock type bag and you can eat as few or as many as you want and not have left over drying out stuff. They are about the size of the Cliff Bloks and are all natural and really delicious. We've convinced our lbs to carry them.