First, I wrote an ad that described the product but with an unusual premise. The ad that I wrote had several misspelled words. If you found the misspelled words, circled them and sent the ad with the misspelled words circled, you would get $2 off the price of the computer for each misspelled word you circled. My concept was simple. If you didn’t find all the misspelled words, you paid more for the computer, but then again, the computer was worth more to you than to somebody who found all the mistakes.