Last year I replaced several windows in my house and they were the expensive double-pane energy efficient kind. But this week I got a call from the contractor complaining that his work has been completed for a whole year and I had yet to pay for them. Boy oh boy did we go 'round. Just because I'm old doesn't mean that I am automatically stupid. So, I proceeded to tell him just what his fast talking sales guy had told me last year ... "that in one year the windows would pay for themselves". There was silence on the other end of the line so I just hung up and I haven't heard back. . .Guess I must have won that silly argument.