I have long had a small Nextec Craftsman battery-powered electric drill that had become my most-used tool, but I am not counting that (I have a two-headed screw-driver bit that I use with it, and the charge lasts for weeks. The twisting force (torque) is stronger than my strength with a screwdriver.) It is ideal for the countless small jobs around the house. I kept my corded drill for the long jobs, but I haven’t used it in years.
I count my revolution as starting last year with a battery-powered Kobalt leaf blower from Lowe’s; expensive, but I use it far more often than my corded blower. The Kobalt is as powerful as my corded blower and can take other tools (the battery and charger alone cost $90). I use the Kobalt every morning while the leaves are coming down. Plugging in the cord with my old leaf blower did not seem like a big deal, but I guess it was. I already had the extension cord than reached to the far corners of my yard (front and back) and convenient outlets.
Then, we had a Rocket stick vacuum that we used exclusively since we took up the wall-to-wall carpet. But it was corded. Based on my Kobalt experience, I bit the bullet and replaced it with an expensive battery-powered Dyson vacuum (V10), and, sure enough, I use it several times a day, even though plugging in the Rocket is easy. Mainly, I use the Dyson to pick up mud clumps I track in. The bracket it hangs in also recharges it, so it is always ready to go. Even my wife finds it easier to vacuum up mud clumps than to nag me to take off my shoes. The charge has more energy than we do. It has no bag, and I occasionally empty the dirt container in the back yard. Just like in the Kobalt, the lithium-ion rechargeable battery is a God-send.
The Dyson is an older design that does not have the bright LED lights of the Rocket that lights up the carpet ahead, but I expect new models to have them. Lighting with LEDs uses very little electricity.
The bottom line is the house is cleaner and the yard more leaf-free than they ever were with far less effort.