Back when I was in the mortgage business I had a client that was waiting for his house to be built.

[bluesbassman]

I had pre-qualified him and his credit score put him in the top tier for best rates. Although I advised him not do anything credit wise until after his home had closed, he apparently had been listening to the advice of Suze Orman and cancelled all of his existing credit cards except one. The problem surfaced when I had to re-pull his credit and his score had dropped due to the good standing accounts no longer being active. The result was a .5% higher rate than he should have received. He was pretty upset, but as we had to close his sale there was no time to correct the mistake.