Did this in computer sales. Within a few sentences I would know that you would be buying one of three computers off my shelf.

Oh I just need something for word and internet.

Well let's look at , , and . There are 40 computers on this floor, but you now have to pick from the three I chose for you. Out of those three, there is one right answer.

Now lucky for them I was trying to steer them to the best computer for them, because I was not on commission and didn't care about sales numbers, but this is a frequent sales tactic. Next time you're on a car lot, try to see if you're shown more than 3 cars out of the hundreds on the lot.