The U.S. Postal Service has officially raised its prices on several mailing products, including "Forever Stamps," letters, and postcards.

USPS increases forever stamp prices from 73 to 78 cents effective this weekend. Postcards, letters also affected as postal service seeks financial stability.

What are some USPS products that will cost more? The USPS is increasing the price of several other products. That includes domestic postcards, which are increasing from 56 cents t ...