The call usually comes with short notice. The doctor says your mom or dad is ready to leave the hospital, a discharge time is set, and suddenly you have a day or two to get a house ready for a very different kind of homecoming. The good news is that a few well-chosen changes can make a big difference. You do not need to remodel anything or buy a lot of gear. You need a clear picture of what your parent can do right now, a walk through the home…