Photo: iStockphoto
I was in California the other day and saw someone doing something that I haven’t seen done in a good while. I used to do it myself quite a bit, when I was in college, largely out of necessity.
What was it?
A piece of Freakonomics swag to the first correct guess.
Addendum: The answer to the nostalgia contest question is provided here.
and 
. You can also watch it on 
Practicing street economics (setting out a hat to collect dollars as people pass by if exchange for economic lectures, much like street musicians)
Use a payphone
Eat out of a dumpster
hitchhiking ?
Two guesses: studying or laundry/laundromat
Riding a bicycle?
rollerblading?
Typewriting