I can't blame all my lapses on age - when I was in my 40's I hired a car while mine was being serviced. I forget to note the number, make or even the colour. I parked it in the multi-storey at Liverpool and completely forgot even which floor it was on. I had to walk up and down seven floors until I saw a car with my coat on the back seat. Now, of course, I would have an electronic key - they are great for recognising your car! I blamed it on having too much on my mind. Now, I make a note of my rental car number as soon as I pick it up.
My sister has been leaving bags, umbrellas, shopping, etc. on buses and in telephone kiosks for most of her adult life. She has had her purse stolen several times because she leaves it on top of her shopper then turns to get something off the shelf. She now has a coiled thing which attaches it to her bag - but last month she left her bag in Wilkinsons. She was convinced somebody had stolen it in Morrisons, and reported it to the police and cancelled all her cards. As it had her address and her keys in it, she was about to get the locks changed when Wilkinson rang her on the Tuesday to say she had left it there on Saturday. She was, quite naturally, somewhat annoyed that they had left it three days, especially as it contained vital medication for her heart complaint. Fortunately, she had more at home. I have now given up nagging her about looking after her belongings as it is obviously something she just cannot help.