Just that really... Need to let the electrician know! I thought it might be useful if hoovering the car but can't think of any other need for it? If it's going to cost more because of the wiring then i'd rather not have it, extension is costing enough already
We have one outside front and back. Yes to all the things already mentioned but also we seem to have tradesmen around a lot and then you don't need to have a door open all the time so they can charge their spare tool batteries, plaster or concrete mixer etc. And an outdoor kettle station means they can make their own hot drinks.