Just reading this (in terror since my teen (in 11 years...) DD will have a step daddy and a daddy....) and wanted to share with you Mel, something my own mother did to my sister when she wouldn't do her chores. Sis was supposed to do the dishes. If she didn't my mother would serve her meals on dirty plates. Not everyone's, just hers. So she would "get" the link between her inaction and the consequence of it. Sis was 14 at the time and within two meals was doing her chores.
I will admit that since we had our own rooms, mum let us keep them however we wanted, but she didn't go in there either - like if we wanted clothes washing we either did it ourselves or put them in the family washing basket (which we took turns at sorting/washing). She did not come in our rooms to rescue our clothes and she insisted on correct attire. i.e. if you left your school uniform on the floor on Friday you went in stinky and crumpled on Monday...

