A single First Class stamp is adequate, however there are restriction on the size, shape and weight of the envelope and distance within the United States does not regulate the price of postage. Sending an identical letter from Palmdale to San Francisco will cost exactly the same as a letter from Palmdale to Bangor, Maine or Key West, Florida.
No, you have to use stamps from the country of origin of the mail. In this case you will have to use Italian postage stamps.
The person who received the mail.
That is the purpose of postage, to allow you to mail letters to anywhere in the world. The stamps of the country of origin of the mail are used for postage.
No, you must use US postage stamps.
Stuart Rose has written: 'Royal Mail stamps' -- subject(s): Postage stamp design, Postage stamps
The entire purpose of the Forever Stamps was that you can use them for one ounce of First Class Postage forever. No additional postage is necessary.
They are still valid for use as postage as long as they add up to the proper postage. If you check USPS regulations Postage due, special delivery and certified mail stamps are NOT valid as payment for postage.
That is what stamps are for, to pay postage. In the US you buy postage stamps and put them on mail to any other country in the world.
Yes, postage stamps require that you pay for them. That is how the postal service gets its revenue so that it can do business. Postage goes up when the cost to deliver exceeds the cost taken in.
One if it is enough postage.
By ordinary mail (snail mail) you do. That's what postage stamps are for. And that's why the whole culture of stamps started in the first place...
No - Us stamps can only used on mail sent from the US.