On your next trip, rather than buying a postcard to mail back home, make your own. CartolinaPostale.com
makes it as easy as snapping a picture, adding a frame or design (32 to choose from), entering an address and a quick note, and hitting “Send.” A few days later, a physical postcard arrives the old-fashioned way — via snail mail — and makes someone’s day just a little bit brighter. Of course, we can’t vouch for your photography skills, but either way, it’s the thought that counts. Even if the postcard is a little blurry. The app is free; the cost for mailing in the U.S. is $2 and international shipping is $3.