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.
I also recommend a cordless impact driver. The amount of torque you can generate with a drill is limited by your ability to hold the drill. The amount of torque you can generate with an impact driver is magnitudes more. Great for driving screws, tightening nuts, I’ve even used it for drilling through wood with a spade bit.
But not your only drill.