With school letting out and sultry summer days ahead, it's time to start thinking vacation.
Because it's a supply-and-demand world, you'll likely be up against higher airfare, hotel costs and car rental rates. But here are some tips to help keep things affordable.
If by air …
If you plan to fly domestically, your best chance to score cheaper fares is by booking about 60 days in advance. For international travel, make it 90 days. This may also be the right time to cash in frequent-flier miles or companion fare coupons. Comparison websites such as Kayak, Skiplagged and