Spray mop with washable pad is great - no more smelly mop heads, and great for cleaning up after pets.
In the car I keep a small purse with coinage for car parking machines, pens, tissues, carrier bags, dog poop bags and a first aid kit. When DS was small I kept an emergency change of clothes, wipes, nappies etc.
Cosmetic-type bag in my drawer at work which holds plasters, safety pins, paracetamol, body spray, santitary pad, nail file, vaseline, pack of tissues.
Monthly delivery from Smol for dishwasher tablets and laundy capsules.
Change bedding on the weekend, but wash, dry and replace the same set in one day - if I use multiple bedding sets, the dirty ones sit around for ages and the washing builds up.
All matching hangers in the wardrobe - it actually saves space, and is pleasing to look at.
Friday is the day I water the plants - otherwise they risk being overwatered and drowned if I can't remember when I last did it.
1st of the month - top up rinse aid and dishwasher salt, run a cleaning cycle. This is the only way I remember when I last did it.
Keep a bottle-brush for cleaning out recycling and the detergent drawer of the washing machine, then put it in the dishwasher when running the cleaning cycle.
Small dossett box with my meds in for each day of the week, refilled on a Sunday night. If I can't remember if I took my meds, I don't take any more, which means I am under-medicated which is not good.
Goodreads account - for keeping track of the books I want to read, categorised by whether I own them already in book/kindle format, so I don't buy duplicates. Also helps for recommending a book to someone else.