Also, carry half your medication in your carry on and half in your suitcase incase your bags are lost or delayed. Always check how long the food has been sitting in the sun.
Food sitting in the hot sun spoils quickly and can lead to food poisoning.
If you lie in the sun too long all at once you become very susceptible to sun poisoning and will end up in the room for the rest of your trip. When renting a car always know your rights. Before you go away check with your own car insurance company as well as your credit card company to find out if you are insured on car rentals. If you are, don't let the car rental company try to bully you into taking out more insurance. Also, be aware of what you sign.