I just spent time this afternoon going through the junk mail in the recycling bin to find usable scraps of paper blank on one side. We take them to a charity which uses them for phone messages, then recycles. In about one month's time, we've accumulated half a paper box of scrap; the rest goes directly to recycling.
I, too, call catalog senders to get taken off the list. The ones that haven't listened and send two of each are Hitchcock Shoes (never ordered from them) and CampMore (ordered once online, now all these paper catalogs!).
Some junk mail I compost. I'd handle more of it that way if we had a shredder.
I do resent all this JUNK.
Top on my annoying list is the newsprint sale circulars for the grocery stores.