It is not envelopes that are postmarked (franked), it is the stamps on the envelopes (so that they can not be used twice). Therefore they are franked when fist processed in the sorting office.
I need to have a letter postmarked today, Vetrans Day, will the post office stamp the letter with todays date tomorrow?
At a post office or at a stationer's.
Some post offices do offer 5x7 envelopes for purchase. You can also find them at office supply stores.
yes
you can get postage paid envelopes from your post office or online at stamps.com
Sure does!
You can order large quantities of shipping envelopes from your post office in your town. You can also order them on line from the post office as well. Sometimes for free.
Some good retailers for office supplies such as envelopes would be Staples or Office Depot. If one is looking for envelopes in particular, one might try a post office as well.
You can find shipping envelopes at your local post office. Another good place to look would be your local office supply house as most do carry shipping envelopes.
You prepay with the post office, they will give you all the deatils.
Most office supply retailers have envelopes for pretty cheap. It might also be worth it to go to the post office, or a shipping website like ULINE.
There are plenty of places someone can purchase envelopes for mailing purposes, either at the local post office, office supply store, or online at companies like uline