Regret-Proof Your Summer: 11 Ways to Ruin a Vacation

Renting a Clown Car

Aside from not reserving ahead of time, the most frequent mistake people make booking a car is choosing one that's too small for their needs. As Enterprise spokesperson Meghan Maguire explains, "A lot of people say, 'Let's go for the compact car,' when they have four people, five suitcases and golf clubs." Enterprise tries to match customers with the right model, but with so many people renting vehicles in the summer, it's not always possible. If you're traveling with your family or a group of friends, consider a full-size car, a minivan or an SUV.