For this year's holidays, you can use Gmail to send real postcards (snail mail) in the US only, for free!
To send a card, visit gmail.com/holidaycard. You'll be able to send cards to a limited number of people, "due to limited Gmail elf availability", Gmail says. You can enter a message of up to 255 characters long along with the recipient’s name and address, and then you can select what type of design you want on the postcard.
To send a card, visit gmail.com/holidaycard. You'll be able to send cards to a limited number of people, "due to limited Gmail elf availability", Gmail says. You can enter a message of up to 255 characters long along with the recipient’s name and address, and then you can select what type of design you want on the postcard.