I spent 2� years as a 'trade plater', delivering vehicles throughout the country. At 5.30am, I could be driving a white transit. By 9am I could be driving a red Porsche. By lunchtime, I could be in a blue minibus. By teatime, I could be in a black Iveco truck, on my way to pick up my last vehicle of the day, a silver Range Rover, which I'd take home overnight.
Quite often I'd call in at a supermarket on my way home. When I came out, I frequently realised that not only did I not remember where I'd parked the vehicle, I'd also completely forgotten what the vehicle actually was! (Forgetting a registration number is embarrassing. Forgetting the entire vehicle's identity is far worse!)
I'd then spend the next 10 minutes wandering around the car park trying to remember what the keys in my hand were meant to fit! ;-)