I've just completed a clothing catalogue for all shirts/jackets worn by Sam and Dean from S1 to S5.
I've got some charts and graphs too! You can check out the project here:
If Clothes Could Talk (the charts and graphs are in the entries for each season), and I also have a SuperWiki page for it here:
Clothing Catalogue.
It includes histories of each piece of clothing - which episodes they appear in and how long they were worn, as well as what damage they incurred. :)
It'd be a good resource for anyone who wants to write meta on clothing/colour/Hunter-lifestyle.