I've never really had to do this before, but I am actually contemplating packing a bunch of PowerBars for an upcoming work trip. I'll be on a chartered plane winging around Siberian oilfields, on a trip so jam-packed and exhausting that I am really regretting signing up for it. From the schedule I was given, it appears that there will be very long stretches between meals, plus many occasions when I will want to skip the late-night dinners and crack-of-dawn breakfasts in favor of a few more moments of sleep. My question is: who's got suggestions for a food product that is packable, non-perishable, and non-crushable, suitable for sneaking into my suitcase/handbag, and filling and nourishing enough to replace a meal? I really hate PowerBars, by the way.