It’s May. Memorial Day and the end of the school year are in sight. Suddenly, you’re thinking about summer vacation. A little planning — and some insider tips — could save you a lot of money. Whether you’re booking an airfare, a rental car, or a hotel room, there are questions to ask first, such as:
When is the best time to buy airline tickets? Generally it’s four to six weeks before you travel.
Do I need rental car insurance? Your personal policy probably covers rental cars. It probably also extends liability insurance to your rental, which you need.
How can I save a few bucks on my stay? Are nonrefundable rooms a good deal? For smaller hotels and bed and breakfasts, pick up the phone and negotiate. Full story for BostonGlobe.com subscribers.