There are two Goodwill stores within 5 minutes of my office and I sometimes pop in there 2-3 times a week if I have 10 or 15 minutes to waste on my lunch hour. One day recently I was in and found this awesome pack of postcards. With pictures and the English and Japanese translation of the word.
There are about 25 in the pack each with a different word. They are in new condition and they were $1.25 for the pack! SCORE!