You can find all types of shelf organizers on the following site: http://www.containerstore.com/welcome.htm. They have a great selection.
Ikea carries a large variety of clothing organizers. One could buy hanging organizers, shoe organizers, hooks and hangers, cabinets, racks, and stands.
The different types of shelf brackets available in the market include L-shaped brackets, decorative brackets, floating shelf brackets, and adjustable shelf brackets.
Shelf organizers sold in all department stores, such as Walmart, The Bay, Sears. Most stationary store carry them as well, such as Office Depot, Staples, Canadian Tire.
Cort carries all types of professional looking desk organizers that you can use for home or office.
Some of the desk accessories that are available at Overstock.com is Organizers for personal use, Desk Pad, and there is a wide varity of wastebaskets that would be useful.
Hanging shelves are amazing. They range from 10 - 15 dollars a piece for a fabric shelf that hangs from your closet bar. Each shelf contains 5 - 6 slots that you can put folded jeans, shirts, and hoodies in. They can be found at Target or Walmart.
Some types of desk organizers are mailholders and desk sets which seperate pencils and other utensils. The more organized the better!
There are many different things you can purchase to make a walk in closet more organized. They sell wood and cloth baskets that fit on shelves. http://www.solidwoodclosets.com/products.php?cat=Walk+In+Closet+Organizers
There are many different types of over the door shoe organizers available online. Try searching at Target or Walmart for a good deal. There are wire framed, plastic and fabric varieties to name a few.
home office organizers are often made from oak, plastic or metal.
You can shop for bedroom closet organizers at http://www.organizeyourclosets.com/. They also have garage organizers and kid's room organizers available for your browsing pleasure!
The different types of pull-down shelf mechanisms for kitchen cabinets include manual pull-down shelves, spring-loaded pull-down shelves, and motorized pull-down shelves.