Please choose the correct ending to complete the given sentence: Computers and Electronics: [header] How to avoid unnecessary expenses at the airport [title] Pack a few light snacks. [step] Load up on packaged foods that you can munch on during the flight, or devour a large meal that you know will hold you over until you land. That way, you'll be less tempted to make a stop at the food court, where the options tend to be quite pricey.

Ending1: Make sure to avoid fast food while traveling on smaller trips. [substeps] Bring all food included to group meals like sandwiches, hamburgers, and cold water. Ending2: [substeps] Don't forget to pack sunscreen, contacts, and hat on board to protect yourself from the sun. If you're traveling through the wilderness, an expensive hat can double as a protective measure. Ending3: [substeps] For larger passengers, request that your muesli or tashi fold back overnight or wrinkle it if it's so organized, such as in your car. These stay beyond 72 hours! [title] Get comfortable with small snacks. Ending4: If your appetite gets the best of you, seek out a vending machine or snack kiosk instead of a restaurant. [substeps] Items like chips, granola bars, mixed nuts and candy make perfect snacks for flying.

Answer format: ending1/ending2/ending3/ending4