Last bill I looked at was down quite a bit, but I can't say why for sure. Between the settings on the PC, the furnace motor not running so much, not watching as much TV, not using the crockpots and microwave as much and a few other things, there probably isn't any one direct reason.
Next month will be interesting though since I had to replace an appliance that was causing problems. That was drawing around 80 watts about 23 hours a day or so. But, I've also had to crank up the ceiling fans although I haven't needed the AC yet.