100V doesn't cut it, we need them to work off USB-C. The current generation of appliances is a bit too old, and should soon be phased out. It has already begun, but the next generation of appliances all have built in battery and capacitor banks. Batteries are trickle charged through USB-C (i.e. like phones and laptops).

e.g. cordless vacuums / lawn equipment with swappable batteries.

e.g. water proof electric shavers, toothbrushes, blow dryers.

Likely soon induction stoves, air fryers (for instant pre-heat), heat pumps (including the fridge / freezer), blenders, etc. If it can run on USB-C, off the wall cool. If it can't add a battery.