Making Light:  Open thread 21 ::: April 23, 2004, 06:52 PM

fidelio:

  Based on my experience, the post office will deliver (at first-class
  rates) anything legal to mail that the envelope is affixed to,
  provded that it's packed according to their standards.

That's a surprise--I read a news story a decade or two ago that said
they were no longer going to deliver anything over an ounce in those
prepaid envelopes.  This was precisely because people were sending
bricks (costing the advertisers money) and the Post Awful is in the
business of selling "customers" to advertisers.

Of course, Edward also wanted this to be legal.  I hope I'm also
incorrect in my recollection that using those envolopes to send
anything other than what they asked for constitutes mail fraud.