Shoes for men, women, and kids. This is a good neighborhood source for comfortable, healthy brands like Ecco and Rockport. Also a good place to shop with the family since everyone's shoes are in one place.
Because of the prices and selection, this store can get VERY crowded on the weekends, with strollers everywhere and sales staff unable to focus on you. Know this in advance if you can't deal with chaos - come on a weekday.
Head for the back right side of the store for a special kids' section complete with primary-colored seats. On the back left side you'll find the more expensive men's dress shoes.
Good selection of winter boots from Canada and brands like Ugg - first snowfall in NYC always has this place packed.
Medical workers also use Harry's as their source for Dansko clogs. Tip to medical students: no other shoe will do when you're on your feet in a hospital for 24-hours straight.