The Mt. Airy Babysitting Co-op is a beloved local institution that has been running since 1974. The premise is simple: Families in the co-op provide each other with free childcare. A point system " once tracked in a pen-and-paper ledger, now in Google Sheets " ensures that everyone contributes their fair share. Every half an hour is worth one point, with extra points for things like looking after multiple children or sitting after midnight, explains [Stef] Arck-Baynes, who now serves as the co-op's membership chair. "If you do a sleepover, points are raining down on you!" With rising living costs and a growing childcare crisis, communal arrangements like this can be a lifeline for parents living far from extended family or still looking to build their "village." It goes beyond saving money, says Arck-Baynes. Knowing that the evening's babysitter is a fellow parent can make for a more trusting relationship. There are currently 17 families in the co-op. The logistics can seem overwhelming at first " there's a vetting and voting process for new families, 16 pages of bylaws and a rotating secretarial role for coordinating sits and recording points. But it becomes second nature once you get a handle on it, says Arck-Baynes. "We're constantly talking about how to make the process easier." Mama geht tanzen (Mom's going dancing) events have spread across cities in Germany, Austria, Switzerland, France and the Netherlands. Their "After-Care Parties" start at 8 p.m. and wrap up by 11, so moms can go clubbing without sacrificing their sleep (or their nerves) the next day. DJ Nikki Beatnik launched Mums that Rave in the U.K. after the birth of her child in 2019.