Summer travel tips – May. 23, 2011.  The problem: This summer, gas is expected to peak at more than $4 a gallon, and domestic airfares will be up 13% from a year ago. Blame soaring oil prices and increased demand, says Rick Seaney, CEO of FareCompare.com.

What to do: Boost your gas mileage by as much as 33% on the highway (about 5% around town) by sticking to the speed limit and not accelerating or braking suddenly. Download the free app from aaa.com/mobile to find the lowest pump prices in your area.