I dont know how many times I have asked my son do to little things around the house that WE live in, he has never spoken back to me or sworn at me and he wouldnt dare. He has realised that I am his mother first and his best friend second. I cherish every moment when he is home (He's in the Army) but he's still the same and I wouldnt change a thing.
With regards to cleaning house and sharing with the chores, you shouldnt have to be asked, you should do it as a matter of course!! Its hard being a mom with all the other responsibilities that come with it, sometimes these little things go unseen, unnoticed and not appreciated.
I hope that you get your relationship with your Mum sorted out, have you ever stopped to think of the turmoils that she would go thru?
Your mum loves you!! Please remember that!! She obviously has respect for you by giving you the responsibility of making sure that your home is neat and tidy for visitors.
I hope that you dont see this as a 'lecture' but a bit of an insight on being a mum, its not all roses you know.