What do you do with your junk mail?

No, not the organ enlargement mail you get on the computer - I mean the stuff that gets shoved in your mailbox. You know - Woolworths catalogues, takeaway menus, real estate ads and at certain times of the year stacks of glossy pamphlets with shiny-faced politicians?
Well, for a while I used to cut them all up into seperate colours, and turn them into collages. Like this: