How can we help our elderly parents?

Anyone who is lucky enough to have elderly parents will sooner or later have to face the question: what should I do for their future? We can help our elderly parents at home, from near and far. Presence and proximity have nothing to do with kilometers or travel time, but are much more determined by good intentions, open ears and sincere efforts. Some topics: moving, financial circumstances, care and maintenance, meals, pets, services, etc.