The thread reminds me of the last time we got into a real argument. She keeps a sponge and a dishcloth on the sink. I (erroneously) assumed the dishcloth was for dishes. Turns out, and this is after 20 years of being together so maybe I'm just not paying attention, that the cloth is for wiping down counters and is NEVER TO BE USED FOR DISHES!
I'm like "honey, it's a dishcloth", she got upset about this and when her mom came to visit brought it up. Now, I love her mom really, and to her credit she didn't want to get involved, but apparently her whole family uses dishcloths on the counter, never dishes.