Reduce the amount of rubbish that comes through your postbox thusly :
- Register with the Mailing Preference Service. This little known organisation controls most of the direct marketing mail you get through your door. Of course in an ideal world you would have to register to GET the stuff, but hey, that's capitalism for you.
- Let your bank/building society/utility/etc know that you're not interested. All it needs is a quick phone call and you'll then only get the important stuff.