I used to figure a spanner is a spanner, why pay more for the same flat bit of steel. Then I watched a cheap set round off a filter ring so bad I had to cut the thing off with a Dremel, and the glass survived but only by luck. The tips on those Amazon ones are soft as butter, they fold over the second you put real torque on a stuck ring. Now I check the tip hardness before anything else, since a $40 tool that saves one $140 element already paid for itself. Steer clear of the ones where the pins are just rolled sheet metal.

My aunt hums the same three songs every time she bakes bread.

My own humbling moment came at a cafe in Austin where the barista watched me grind for about ten seconds and just said "that's your problem" without me even asking. I had been brewing the same beans for two months wondering why every cup tasted like burnt toast and dirt. Turns out I was so scared of a weak cup that I kept going finer and finer until I was basically making mud. The fix took one small turn of the dial and the next cup actually tasted like the berries on the bag. Three months is a long time to suffer when the answer was two clicks away.