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.
A small countertop water cooler/dispenser with a refillable filter bottle on top. (if you have the floor space, a stand up cooler is usually more energy efficient tho)
Something like this:
With one of these on top: https://www.zerowater.com/products/filtered-water-cooler
Clean filtered water, both boiling hot and almost ice cold, on-demand. Filling water bottles, cups, making hot chocolate, tea, instant noodles, even just starting to boil a pot using pre-heated water, taking so much less time. I love this thing.
When it comes to filters:
Zerowaters products specifically come with a Total Disolved Solids meter measuring in parts-per-million.
I was previously using a Brita filter jug which poured into a second filter from Aquapur ontop of my cooler.
My Tap water: 143ppm
Brita filter: 139ppm
Brita+Second filter: 87ppm
Replaced both with a single zerowater filter: 0ppm
After pulling close to 30 gallons through that filter its risen to ~8ppm (they want you to replace it at >6)
Project farm testing water filters.