Depending on where you are sending the postcard, you may need two, three, or even more stamps. Look up the postage requirements for, say, “mailing from Tanzania to the U. S. " You can usually buy stamps directly at the post office. In the U. S. , you can buy stamps at most supermarkets, and some mini-marts or gas stations; you may even find stamps in vending machines and souvenir shops. Make sure you have the most recent stamp. The price of stamps changes over time. Unless you send them often, one postcard stamp bought a while ago, may not be enough postage.
If the stamp is self-adhesive, just pull it off the backing and attach it to the postcard in the proper place. Make sure it’s not upside-down! If so, however, don’t worry – the US postal service usually mails postcards with an upside-down stamps. If your stamp is not the self-adhesive kind, you will need to moisten the back of the stamp to activate the adhesive. Some people lick the stamp to do this. If you don’t want to lick the stamp, then you can use a sponge, or even just dip a couple of fingers in some water. Moisten the back of the stamp until it’s a little wet, but not dripping. If it’s too wet, the stamp might rip or slide off the postcard.
It is not essential that you include your own address. [4] X Research source As long as you write the receiver’s address, they will receive your card. If you’re traveling, you may not expect a reply – or you can give your correspondent the address of the next place you’ll be staying.
Again, make sure to put the stamp on first. This way, you won’t end up writing where the stamp covers. It’s important not to write too low on the postcard. Most of the time, the post office will print a barcode or attach a sticker across the bottom of the card in order to send it where it needs to go. Try to keep at least a finger’s width between the edge of the postcard and the bottom of your message. [5] X Research source
Some office buildings, government offices, or community centers may have a mailbox. If you are at a hotel, the front desk will often mail your postcard with its outgoing mail. If you can’t find a place to mail your postcard, ask the locals and other travelers.
