also try rice cakes and pb - or even pb and j. They also make a gluten-free tortilla that I can get at my local health food store. I pack 2 cakes with PB to a plastic baggie and carry them either in my camelback or a pocket. I'll admit, the baggies can get a little messy but it's heavenly to be able to stop Anywhere and have some "real" food. I'm also going to try making a gluten-free "trail" mix using nuts, raisins, and puffed rice or puffed corn cereals and see how that travels. I love Larabars but they can be pretty darn expensive and I'm allergic to 3 of the 4 bars! (yippee skippee) Hope this helps!