WARNING! If you're of the outdoorsy sort, leaving this store without at least one item is nearly impossible.
REI is neatly laid out, super high ceilings, helpful staff, and has a lot of "local spots" (for climbing, hiking, swim holes, etc) books.
Their REI-branded clothing is pretty awesome (and way cheaper than competitors like Northface and Prana) and durable. They basically make the same thing as the name brands only with different colors and knock 30-50% off of the price.
I'm a fan. Next time I can afford more outdoors equipment, I'll be back.