How much does it cost to mail a large yellow envelope? The cost of an envelope is determined by its weight, with prices beginning at $1. increased reasing by $0. Each additional ounce will cost an ...

Please note: Letter rates are only for normal business envelopes (sizes #6 or #10), which are no larger than 6-1/8" in height and 11.5" in length. Standard manila envelopes are considered large ...

Can I use 2 Forever stamps for extra postage? In order to send a package or letter over 1 oz in weight, you must use more than one Forever Stamp. Each stamp is worth the current first-class postage ...

Snail mail is still a pretty great way to send letters, but many of us use it so seldom that we don't have any envelopes lying around. For those occasions, here's a quick way to fold your letter into ...