And if you like "old school" catalogs, Quadratec is amazing. It's like 200 pages of stuff in every category. You can browse it and get a concise view of everything that can be added to a Wrangler. The catalogs are specific to your model (JK/TJ/YJ, etc.) so you don't have to wade through a bunch of stuff that doesn't fit your jeep.
I dunno -- something about having it all there to spark the imagination. Without that, you have to specifically search for something. With the catalog, you can be flipping through, minding your own business, completely unaware that you need a RealTree Camo Parachute Cord Velcro Garment Hanger (Fits 07-14 JK/JKU) and WHAM! Out comes the credit card!