This is not a "normal" site. It is for use by my wholesale customers to place orders for t-shirts, sweatshirts, hats, and mousepads that feature the artwork of a single artist from Alaska. On a normal retail site, the buyer is buying one or two shirts of a given size and design. Many of our orders are for 4 or 5 sizes, of six, eight or more designs. The normal site can use attributes with a drop down to choose a size and order it, then maybe another size and order it. This is way too cubersome, so I organized the products with the designs as the categories, and the type of product (t-shirt, longsleeves, etc) as sub-categories. When a customer chooses a subcategory, they get a product list with all of the sizes listed (I have images and descriptions turned off so it looks like an order input list), and they can fill in all of the sizes and hit add to cart once, making the ordering process much more streamlined. It's weird but it works really well.