Have you ever put something away and forgot where you put it?

lol.. I put so many things where I could find them later but I keep finding the wrong thing when I look for it.
I know several times I've bought something to use later and couldn't find it, go get another, and a week later find what I knew I had.:banghead:
And then there's the hat issue. When it's on it feels like it's not there. When it's off, it feels like it's there.:dontknow: