I'm just launching a new website...
The simple idea is that most people I know have thrown away perfectly good shoes, gloves etc just because they've lost one, and can't use the other.
This website allows people to upload their remaining single glove shoe etc, and try and find a match. You can buy items, sell items, or give away items.
So, next time you loose one shoe (or even if you find one shoe) - don't throw it . List it!
Note: The site only went up a few days ago - and it's at a very 'evolutionary' stage. Eg, not everything works - and things will change! So if you find anything broken - let me know!