"WASHINGTON (Reuters) -- The cost of mailing a standard letter domestically increases 3 cents this Sunday to 37 cents. Sending a postcard will rise 2 cents to 23 cents. "

I just freakn' bought a book of stamps yesterday. I wish they would pre-announce this stuff earlier then the day beforehand.

CNN.com - U.S. postal rates rise Sunday - June 29, 2002