
Over-the-door shoe organizers are available everywhere, from The Container Store to Storables to the Martha Stewart version at Target to John Lewis in the UK, where it's called an over door shoe tidy. (That picture above comes from Storables.)
While they certainly work for shoes, they can also be used for many other purposes. Here are just a few places you can read about alternative uses. Note: The clear vinyl versions would probably work better than the prettier canvas versions for these uses.
Real Simple writes about using them for gloves, spices, and office supplies.
Apartment Therapy writes about using them in the bathroom.
Lifehacker writes about using them for gadgets, cables, and wires.
CasaSugar writes about using them for amenities for a house guest.
Image Source shows them being used for cuddly toys.
Momready writes about using them for tickets, invitations, coupons and other such stuff - as well as for wrapping paper. And there are pictures showing them being used for Barbies, racing cars, stuffed animals, train tracks, art and crafts supplies, socks and underwear - and more.
Parent Hacks writes about using them on the coat closet door for gloves, scarves,hats, dog leashes, and more - and also notes they could work for sun glasses, swim goggles and such.
AL on Associated Content writes about using them for hair supplies, bath supplies, computer items, office supplies, small toys, and more.
eHow writes about using them for winter stuff (such as hats and gloves), gift-wrapping supplies, cleaning supplies and more.
And Thrifty Fun has a wealth of ideas about what can be stored in these shoe organizers: beanie babies, dog supplies (sweaters, leashes, bandannas), socks, jewelry, and much more.