In most places, the YMCA is a pretty straightforward concept. It’s an affordable place for the family to get fit and stay fit, to introduce sports to your kids, and perhaps most beautiful of all, members with young children can take advantage of free childcare during workouts (except Stamford). As with many things, though, Fairfield County is a little different. There are towns where it’s simple — Greenwich, Stamford, Darien, New Canaan, Westport-Weston, and Wilton all operate as independent entities, where members join and generally only EVER go to that particular Y. (More about reciprocity agreements later). However, there are at least 11 other YMCAs across the county that act more like conglomerates — and members are encouraged to take advantage of different amenities at different locations. Problem is, who has the time to figure out what is where, digging around in several different YMCA websites? Mommy Poppins, that’s who. Here’s the rundown on what each Y offers, in one place -- incidentally, a great launching pad for your comparison shopping of gymnastics classes and swimming lessons.