In the grand scheme of things I didn't think the odd tub of laundry is going to make a lot of difference to your bill at the end of the year considering how high the daytime bill is going to be anyways from all the lights on, furnace/air not turned down since you are home not at work, use of stove etc. Besides the way I look at it is that we will end up claiming some of that on our taxes anyways.
You also have to look at your life. Just because some things are easier or harder or cheaper or more expensive also has to be weighed against your well-being. Deciding to do laundry or bake at naptime is a small cost to pay for an evening of free time and certainly cheaper than eating out on the weekend because you are so exhausted.
One thing I have wondered though is now that time of use for hydro comes into play will there be a way to adjust our forumulas to figure out the hydro differently so that we are claiming 10 hours per day at the high rate and not having to average the entire day. ie claiming the real cost of using electricity in our business. Would love to see the response from revenue canada on that one.