Hand grinder, stainless burr
The cheapest grinder that is not a disappointment. I tried two below it and sent both back.
Jun Park
Coffee at home, badly, then well. Also a reformer convert.
re-shelved twice
No grinder costs less than this and works.
Coffee scale with timer
Weighing the water is the single change that made my coffee stop being random.
Gooseneck kettle, stovetop
Stovetop because the electric ones die in two years and this one will outlive me.
Ceramic dripper, flat bottom
Flat bottom is more forgiving than a V60 when you are half asleep.
Magnesium glycinate
Not coffee, but it is the reason I can drink coffee at two and still sleep.