If you will be mailing out Christmas cards or other types of greeting cards, mail them earlier this year. As part of a 10-year plan launched on October 1 in order to overhaul the struggling U.S. Postal Service, first class mail is now allowed up to five days for delivery versus the prior 2-3 day delivery time. Mail travelling 930 miles or further will take even longer. For the second year in a row, the USPS is increasing the price to mail a package from between 25 cents to as much as $5.