What household chore have you got completely wrong?

Probably most things over the years 🤣😂🤣😂

Washing and dryer messes probably the worst!

Giving my DH's favourite handmade alpaca Fair Isle pullover a "good hot wash" in the machine to spruce it up a bit. It dried into a hard effigy of half a man, about 5 sizes smaller than it went in.
Better than my Gran, though, who boiled Grandpa's woollen long johns on top of the stove. They turned to jelly.

I washed the lettuce with soap flakes aged about five.

I didn't notice a red sock in my son's football team's kit that I offered to wash for them.
They had to play in pink shirts for the rest of the season. The boys were not impressed.

Leaving all my clean white blouses in the machine until I had my lunch, instead of hanging them straight out.
My sister came along & threw in her dark jeans & set the washer off. We fell out big time🤦‍♀️
Oh how I wish she was still here so we could make the same mistake, I wouldn’t give a flip 😞

When we moved to our Victorian terraced house I used the hoover to suck up lots of soot disturbed when the workmen blocked off a real fireplace in one of the unfinished bedrooms. I promptly took the hoover downstairs to the finished part of the house with pristine light coloured carpets and got a black bin bag to empty the hoover in, of course I should have done it in the kitchen, and of course I should have asked someone to hold the bin bag, but you know what is coming next, I emptied the hoover contents which missed the bag and landed on the beautiful carpet. We managed to clean it up by hoovering all over again, several times, but was quite shocking.

Washing my daughter’s white lab coat with a pair of green joggers. Well she was the only one in the class with a green lab coat !