What do you pay per day in utilities? $30/day here

Ouch...just got my utility bill. It's over $1,150 for 40 days or about $29/day. Yeah, it's been cold this month and my house is 3,800 sq. ft. ...but still.

Anyway, I'm thinking about changing out all my appliances:

Water Heater,
Furnaces (2)

And anything else that's sucking power.

I'm getting walloped here.!

Any ideas what else could be the culprit here?