In the spirit of public service announcements, now would be a good time to stockpile some Forever stamps (the ones with the Liberty Bell on them), since you can still buy them at 41 cents up until May 12, when the USPS is raising their prices again. Granted, you will be loaning the postal service money now for services you may not actually use for months or years to come. But it still feels good to get something for cheaper than it'll be in a month, right?
Two interesting tidbits from the site: "The average increase by class of mail is at or below the rate of inflation as measured by the Consumer Price Index. ... We will have 5 billion Forever Stamps in stock to meet increased demand before the price change."