If you are like me Beth! We think Garth had a great idea but we want things to look nice especially in a house that is new to us. So here is my advice and no hard feelings men! An inexpensive Oriental/Persian rug from Sam's or Cosco beneath you as you paint would be nice and kind to the feet and legs. I couldn't help but notice the hard looking floors in your living room. A couple of space rugs like the above mentioned under your feet will help to buffer the hard floor and if you drop or splatter paint it will blend in with the rug if you pick out a busy and dark enough rug. Another reason for picking out darker rugs would be so that you don't have a bunch of light and colors bouncing around while you are trying to paint
Hope that helps!