I am rubbish at keeping tabs on all my personal effects. I have put my mobile and money through the washing machine because I hadn't realised that  had put them in my dressing gown pocket. I always have to keep my keys on a hook in the hall so that I know where I can find them. Bank cards, also, I take out of my purse to shop on-line and then I have to  hunt for them down between the sofa cushions. Isn't there some sort of app. so that I could stick a sticker on all my personal affects and then find then again? What is the best sort of place to start looking for this? i.e. micro-chipping, painting with some sort of traceable ink or what?