This time of the year, it is usually about $180 or so. I am home with the kids most of the time. We have electric EVERYTHING, no gas at all. My dryer is an electric dryer. It is constantly on during waking hours. We have a 75 gallon aquarium that filters constantly, a septic system that has to pump water an acre away from the house, and a large workshop light that turns on everynight at sunset. I'd say that we are doing pretty good. I keep the thermostat at 75 during the day lately and 73 at night. Once it gets a little warmer, and it will...I will be turning it to 78 during the day and 75 at night. In the Summer our bill never reached 350, EVER, and we have very hot Summers.
OK...so the big change that we have made over the last year has been that we have replaced all of our lightbulbs with CFL ones, which have made quite a difference, I think. I turn off the monitor when I walk away from the computer. Be mindful of wasted power, thats all you have to do. I have a girlfriend that unplugs everything when shes not using it, like the coffeepot, microwave and the toaster. I have yet to try that. Oh, cooking in the crockpot saves electricity also, you are essentially heating just a casserole dish, instead of an entire oven to cook something.
EDIT: I forgot to add (I think) that we live in a 1700 sq ft house.