Around 6/18/2003, I wrote:
But a better idea is what I call the “letter rate” stamp – stamps that don't have a dollar amount on them, but are good for mailing a letter – forever. Buy as many as you want (at today's rate) – when the rates go up you don't have to bother with penny stamps or worse, returned letters. Ditto for the $3 express mail envelopes – buy as many as you want – their stamp is good forever. The Post office would certainly make more money from people buying early. Probably makes too much sense though.
LA Times from this morning:
This Stamp Could Be Mailed 'Forever'
From the Associated Press
May 4, 2006WASHINGTON