Sometimes it’s the boring stuff, sometimes it’s the surprisingly hard stuff, and sometimes it’s the thing you assumed everyone else already knew. Add yours to the thread and compare notes with other people figuring it out as they go.
Honestly... I think it was washing dishes. You can go through clean silverware SO fast, even though you felt like you just washed them. What I learned too late is that just buying more dishes only makes the problem worse. Better to invest in a sponge or dishwashing gadget that you really love.