With a different airline filing for bankruptcy every week, it seems most of them can barely afford the jet fuel to transport us, let alone the bare-bones snacks necessary to keep testy passengers from all-out revolt. Some airlines boast gourmet meals, which you have to pay for, “designed” by celebrity chefs. (Delts offers a “bistro salad” by Todd English for $8, for example.) But even dressed up plane food remains just that—plane food. The solution to in-flight cravings? Pack your own meal. With limited drink service, crackdowns on what and how much you can bring on flights, it is more difficult than ever to prepare your own meals and snacks. Difficult, but not impossible. Here are five snack ideas for your next flight. They’re inexpensive and don’t require massive prep-time (you’re better off spending the time packing), and won’t raise any alarms at security checkpoints. Just remember that each item needs to be in a snack-size (not gallon), slide-close (not fold-over) sandwich bag, or you’ll find your well-planned snacks headed for the TSA trash bin.