Not sure what to do with all those frequent flier miles that have built up from your travels? Are they about to expire? If you answered yes to either of these questions, why not consider donating your airline miles to the Make-A-Wish Foundation, an organization that grants wishes for children with life-threatening medical conditions. The charity has launched a campaign, Wishes in Flight, to raise awareness about the need for airline miles for travel-related wishes for sick kids and their families. “More than 75 percent of the wishes we grant include air travel, and with the cost of airfare continually on the rise, airline mile donations are critical in helping us to defray our expenses and ensure that every one of our children travels to his or her magical wish destination,” said Charlotte Beattie, chief executive officer of Make-A-Wish Massachusetts and Rhode Island. Once donated, the miles never expire. Participating airlines include Delta, US Airways, and United/Continental. More information at www.massri.wish.org/miles.