The Item that seems to break the most is the bathroom sink. I've sat back and counted the number of times a day my sim uses it alone. It came to 6 times a day total. Twice after relieving the bladder twice a day. Twice after brushing his teeth in the morning and after dinner. And twice when he rinses his mouth after brushing his teeth twice a day. That's 6 times a day. And then it goes "Pop" and it needs repair. I'm sure that if there are relatives living in the home that it breaks more often even when upgraded. Do you know of a item that breaks more? Hmmm!!!