Asking item directly from items collection is very resource expensive. If you need one item from large list and you know its numeric ID or GUID then you should never ask item directly from collection. The reason is very simple â to get item from collection by its index then collection must be filled with items first.
Express Next To Similar Mail Services The Express Mail Flat rate is daily up against the `017 Flat Rate for regular Priority mail envelope at $6.65 (same effective date). So some consideration may be warranted before choosing between these services to the exclusion of other providers.
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.