For me, it’s an electric toothbrush. It doesn’t matter if you go with Sonicare or Oral-B, once you start using an electric toothbrush, regular toothbrushes don’t ever feel like they clean your teeth properly. The smooth plaque-free top layer of your teeth that you can feel after using an electric toothbrush can’t be replicated with a regular toothbrush.
Over here, you’ll find a pot of water on the stove more common. Our regular outlets are 120v, but our stoves are typically 240v. A water kettle here would be about half as fast as our stoves (generally speaking). Over there, yeah, with 240 being the standard, a kettle makes a lot of sense.
At least here in Finland a decent amout of stoves are 400v. Still, even at 120 a kettle is faster than an electroc stove. An induction stove is a different story