We used to tape postcards and photos all over our walls in high school and college. We think it probably came down with a desire to surround ourselves with reminders of our friends, family, and travels. This wall of postcards on Flickr reminded us of our old habit.
It kind of makes us want to start this up again, if we could find some more adult, controlled way to do it. (photo by The Random Project on Flickr.) Go here for more info on The Random Project and how you can contribute a postcard.