Mailing a letter will now cost you 46 cents. That seems like a bargain since you can't even buy a candy bar for that anymore.
Still, if it is too rich for your blood there is a way around the increase.
You can buy stamps this week and lock in the current price if you buy the Forever Stamp.
Forever Stamps are sold at the current rate of postage, but are good after the rates increase. This allows you to lock in your mailing costs for years to come.