When it comes to shopping for criss-crossy slingbacks or practical-yet-pretty pumps, we know you're a pro. But shoe shopping for your tot is a lot tougher—it's so hard to size his fast-growing feet. That's why you'll love these shoes from Preschoolians. The soft-soled, machine-washable slip-ons have a clear window on the bottom so you can see just how well the shoe fits your little one ($25, www.preschoolians.com ).