Make an ice pack to keep your snacks fresh
We all know that airports and airplanes are pretty expensive when it comes to purchasing meals and snacks. Unfortunately, most of us get hungry during our trips and have no choice but to buy them anyway. The best way to avoid spending a lot of money in vain is to prepare our own snacks and keep them with a homemade ice pack.
To make an effective ice pack yourself, find a sealable plastic bag, a dishwashing sponge, and some water. Simply soak the sponge and put it inside the plastic bag, sealing it tightly. Then, leave it in the freezer for a few hours. The following day, the sponge should be frozen and ready to keep your food fresh during your trip.