First-Class Stamp to Cost 37 Cents By RANDOLPH E. SCHMID, Associated Press Writer June 26, 2002, 1:19 PM EDT WASHINGTON -- Mailing a letter will cost 3 cents more starting Sunday. The boost in the first-class rate to 37 cents was approved in February after months of hearings by the independent Postal Rate Commission. A variety of other rates, including post cards, parcel post and priority mail, go up at the same time. Postal Vice President Azeezaly Jaffer said the increases would cost the average person about 45 cents extra a month. Postmaster General John Potter has promised rates won't...