Puffy eyelids make eyes look swollen and tired, and depending on the severity of the problem, they can make it difficult to open or close oneâs eyes completely. There are many causes for puffy eyelids; some are avoidable, while others are not.
This new rate would be $0.48, one cent below the Post Office or retail rate of $0.49 for First-Class 1 oz. Letters.â¢ First-Class Mail Flats/Large Envelopes (1 oz.) rates will increase six cents from $0.92 to $0.98.
Postage Rates. The least expensive priority mail flat rate envelopes are $5.75. These range in size from 5 x 10 up to 12-1/2 x 9-1/2. By comparison, sending a 12-1/2 x 9-1/2 priority envelope that weighs five pounds would cost $21.55 instead of the flat rate of $5.75. When mailing items over 13 ounces, flat rate options will save you money over the cost of first class mail.