Because Graphic designer Kevin Gillotti hates wasting time between flights, he started searching for gyms that were near enough to airports that he could pop in for a quick workout. Then Gillotti had a better, and more generous, idea: he starting listing those gyms on a website that he calls, plainly, AirportGyms.com. Airport Gyms lists more than 50 health clubs that are within a hop, skip and jump of airports in the United States and Canada. Most cost a few bucks, usually $5 to $15, for use, but in Gillotti’s opinion, it’s money well-spent.