The US Postal Service is going to increase the price of a regular stamp from 46¢ to 49¢, starting January 26th. Buy your “forever” stamps before that.
If you aren’t familiar with those, they are good “forever” no matter what the current cost of postage is. Just stick one of these on and your letter will get there . . . even when they start charging more, again. :( Hope that takes awhile, though!!