Few of mine: 1) Dishwasher with automatic detergent dispenser. Such a tiny improvement but huge difference (mine is Beko but brand irrelevant)
2) Samsung DeX desktop mode for Android phones. Surprisingly smooth experience with external monitor, keyboard and mouse. Looking for continued development to replace primary device in a few years (unless VR gets there first)..
3) Domestic again, and pretty well known, but induction stoves. Surprisingly many still don't use one..
I could basically never be bothered to floss the conventional way, but water flossing has become part of my nightly routine.
The amount of gunk that comes out from between your teeth even after brushing is pretty staggering.