You can’t just drive up to your garage and plug in your RV. This size of vehicle requires a special source of power; often a 30 amp connection or more. You can hardwire your home so that you can take power directly from the wall, so to speak, but you will need to have an electrician provide the connection, but you can provide the most convenient receptacles and plugs.
Power grip replacement plugs make it easy to plug in and unplug your power source. That holds true whether you are doing so at home or in the middle of the night at some dark camping spot.