Man in Black: it doesn't matter what time you use the electricity as of right now. That will come into effect when the city switches over to Time Of Use billing sometime in 2011, so what time you and your wife are home have no effect on your bill.
Christian: Call the PUC and ask them if you are signed up with a retailer. Just because you said no when they were at your door doesn't mean you didn't get signed up. It will take you 2 minuites to call and find out for sure.