I also only buy black socks , life is too short to faff arse around pairing matching ones up.
Robot vac , mine is a eufy 11s , it's the most basic model the do but I love it. I have had mine 4 years and would replace it aa soon as possible if it broke.
They do get stuck occasionally , and you have to make sure things like laces , headphones, wires , are out of the way but that means that your home is tider anyway.
Tesco online shopping, I font drive so it's a real pain trying to get shopping home.
A good travel cup , I have one made by thermos, it keeps drinks hot for hours andis 100% leak proof.
Magnetic white board for shopping and to do list , both get filled in as soon as I run low on something or remember I need to do something.
Hang washing on the line using coat / trousers hangers - no peg marks and mush easer to bring in and hang straight up in the wardrobe
Strangly I don't have what a lot of other people seem to think is essential, so no microwave, tumble dryer, cleaner , gusto and the likes, never use just eat / diliveroo, air fryer
So just because others think it's essential have a long think about it @Bookbooks before you dash out and buy / change your lifestyle etc.
Don't aim for perfection, aim for contentment.