My kindergartner is currently signed up for a summer camp without a location, a backup one without a starting date, and three waitlist lotteries. One organizer described our odds as "a fat chance." And it's only March. Summer is still several months away. Across the country, parents like me are in our annual scramble to piece together summer plans that balance affordability, availability, and, if we're lucky, advancement. My wife and I are raising two young kids in Philadelphia, relying largely