“Your blog on junk mail . . . reminded me of the stickers I saw on postboxes in Amsterdam last year. . . . Here is one example.
Almost all postboxes have these stickers, from what I saw while we spent a few days there. I was fascinated. The stickers are either “Nee Ja” or “Nee Nee”. . . . Nee means don’t leave any general junk mail, and Ja means do leave the local community newspaper (and the second Nee means do not leave it).
Clearly we aren’t alone in our desire to curb junk mail.”