Make sure to stay hydrated. Bring plenty of water and other fluids. Also make sure to bring healthy snacks. Store your food and beverages appropriately; some might need to be in a cooler.nConsider any medical needs that you or your passengers might need. This includes any medication or foods that someone might need along the way. Pack sunscreen, sun glasses, and brimmed hats in case you end up stuck on the side of the road and have to abandon your vehicle, or if you decide to stop somewhere along the way and take in some sun.