This is so minor, but that's what saving a penny is all about; teeny tiny little things that eventually do add up.
I was making scones for breakfast the other day and wanted tea, so I considered stove top or microwave to heat my water. Being more of a traditionalist, I poured water into my little kettle and set it on the stove. Then it dawned on me. Why turn on the stove when the over is already on and still empty as I worked the scone dough? I grabbed one of my little enamel pots, put the tea water in it and placed it in the oven. By the time the scones were ready to bake, the water ready for tea! One less burner on, one more penny saved!
This is where I really wish I had a Vermont Bun Baker. One stove, one source of energy consumption would heat the house and cook and bake and heat water! Some day, perhaps. Some day.