Re: What is in your lunch box?
Ditto the almonds, apple and PB.
Balance bars make a great variety of protein/carb bars that won't spike your blood sugar, and you can eat them really fast when you're dragging. Other "energy" bars are candy in slight disguise, I tend to believe. These bars are cheapest at drugstore.com, I've found.
Trader Joe's has all these big bulk bags of trail mixes and raw nuts and things for kind of cheap, and I get my favorites, package them into snack size ziploc baggies, and throw them in the snack drawer. They're awesome. Especially the peanut butter pretzel pillows. YuMmmmmmm.
I'm still a student so I try to balance convenience with healthy with not-too-expensive. It is tricky at times. I try to make sure my snacks all have a good protein component.
I never thought of the Ensure. I'll try it!