That food costs a fortune, ditto gas and electric. I now understand why my mum would get so angry about lights being left on, or heating the whole house when your only sat in one room, it's like throwing money away she wasn't just being a nag
That if I throw an item of clothing on the floor or don't put something away, it will still be there next week and the week after, nobody will tidy it away for me (That one took a while to get my head around )
That once you get used to managing a household, you start to sound like your mother, and tell people to stay out of the kitchen etc because you've cleaned and tidied it or get all huffy because there's a sock on the floor