May I suggest, then, buying only Forever Stamps? They cost whatever normal first-class stamps costs, but they can be used even after first-class postage rates g

May I suggest, then, buying only Forever Stamps? They cost whatever normal first-class stamps costs, but they can be used even after first-class postage rates go up, with no need for extra make-up stamps, hence the name, "Forever Stamps". More info: http://www.usps.com/communications/newsroom/forever_stamp_facts.htm http://www.usps.com/communications/newsroom/forever_stamp_fa... (though a bit out-of-date).