I am very displeased with my sis-in-law who is staying with me.
I feel that she is taking my hubby's thing for granted.
My hubby and I owns the car and whenever my hubby don't drive to
work, she will borrow our car to drive to work. Very very seldom
and almost never, she will pay for the petrol cost and ERP
charges.
So when I need to use the car, it seems that I need to make an
extra effort to drive her to work and send her work. Btw she owns a
bike and we never ride her bike.
On other matters, she never helps in the housework, cooks or pay
for any domestic bills for the house. I am also staying with my
parent-in-law and now my house look so messy like a warehouse. It's
really unbearable! 
Do you think she is too much? How should I deal with her?