losing important things like Keys ,cash,etc..

have you ever been out and about then it dawned on you that you lost something that you know and you can't find it anywhere at all? what are the most common things to be lost? could it be credit cards, cash or your keys?? how often does it happen and what was the most significant thing to lose in recent memory? i have lost money over the years. big money at various times. just going out and about. recently upon looking for my key chain I was looking like a deer in headlights. you can have a one Man search party going on for what you are looking for and still not find what you lost until you least expect it. funny how things can be staring right there in front of your face as if to say Hey Dummy it was here all the time just wake up. it is as if Fred g.Sanford is cracking on your ability to not see the obvious and in so many ways things aren't as complex as they seem to be and yet the ability to think and not put what we really need is a lost art for quite a few of us many a time.