In the name of saving energy (and, consequently, saving money), I’m going to keep a tally of my main electrical usage each day.
On my electric company’s web site, you can see how many kilowatt hours you are using each day, including days that haven’t yet been billed.
I will keep track of how many times I run the dishwasher in a day, how many showers happen (and the length of them, if I can be particularly good about it), how long the heater is on, and how long the oven is on.
Some things will always be on the electric bill, such as lights, refrigerator, etc.
I will record the kilowatt hours we use each day in a spreadsheet to see if I can spot trends. Should be fun!