Many things made with paper have become relics because of computers and the Internet: the Rolodex, multivolume encyclopedias, even physical maps.
Now take a look in your mailbox or somewhere around your house. There's a good chance you'll see a shopping catalog, maybe a few of them now that it's the holiday season.
"I ignore them," says Rick Narad, a professor at California State University, Chico. "I get them in the mail sometimes, and they don't make it into the house. I walk past the recycling bin, and they go right in."