I send many postcards, and make it part of my travel routine. I keep a list of addresses just for postcards, which I print on a single sheet of paper (small font). Then, I select 10-20 from the list (depends on the length of my trip which determines my free time) and they are the lucky recipients. Some are always on the list, like my grandmother, since she really enjoys receiving them and she's close family.

I integrate this into the "fun" of my trip. First I scout out various postcard sellers, and then have fun trying to bargain them down since I'm buying so many at once. Next, I scout around to find the post office and buy the proper stamps, which can also be an adventure in itself.

Next, I write the addresses and stamp all the postcards, but I don't write the content. Since postcards are small, I tuck a few into whatever book I'm carrying around that day (I travel very light if I'm just touring around), and find a nice cafe to sit in and watch people go by, while writing a few postcards at each place.

I must say that people really enjoy receiving my postcards, even if my handwriting isn't the best and I don't write such great prose. So few people receive anything other than bills and junk mail in the post these days, so to get something physical from a person is highly valued and remembered it seems.

Justin