REI

This one-stop activewear shop is more like a warehouse than a storefront. Cover your bases, not to mention your kids’, too, with two floors packed to the gills with everything from skiing equipment (cross-country, downhill, you name it) and apparel to tents and hard-to-find accessories like fancy helmet cameras. There’s also an unbelievable selection of running gear—everything from wrist wallets to jogging strollers—plus basic attire and shoes.