43. Coolers can be kept cold by using frozen water jugs
The best camping hacks involve thinking ahead, like learning how to pack a cooler. How much ice is needed to keep your cooler cold? This is one of many factors to consider. When you are going on a long journey, it is recommended that you use a ratio of 2 parts ice and 1 part food.
Why not freeze water rather than wasting space with icepacks? We all have extra bottles around the house. Plus, we can drink it once it melts. You can also freeze things like pasta sauce and chili in bags to use as ice packs.