When you next need to rent a car bear these couple of tips in mind. They could save you a lot of money.
Even if a gas station is out of your way, make sure you fill up the tank before you return a rental car. If you read the fine print in your rental contract, you'll see the ridiculous price they charge you for gas. You could end up paying what it would cost to rent the car for a whole extra day.
When you rent a car, the rental company usually pressures you to pay for aditional insurance, too. Don't just pay up without a word. Your regular car insurance might cover rentals. Check and see before paying for the same thing twice.