Climbing stairs is more difficult as we age. A ramp is useful, but it's usually not available in existing homes. When house shopping, avoid sunken living rooms, split-level and multi-story homes, and raised entrances. Also, make sure you have a direct line of sight from the front door to the street: keep plantings low, remove trees, and get rid of other obstructions. First, it will be easier to see visitors (wanted or unwanted) and the goings-on on the street without leaving the house. Secondly, if you are in distress—if you trip on the way to your front door, for example—others can more easily see you and dispatch help.