Don't worry, when you find them they will be in the last place you look.
I always thought keys, remote controls, etc. (items usually misplaced) should have a 'page' function that allows them to 'beep' loudly to help you locate them.
Our 'resident psychic' at the radio station I worked at, was able to help most DJs find lost keys (except mine).
If you lose your keys alot, duplicate them and keep them in only one place for next time.