There should be a profession that's like a locksmith where they just come over and find the thing that's not where it's supposed to be, for a modest fee. Wallets, keys, phones, whatever. They know all the tricks, but--and this is very important--they don't have the same blindness you do about where things exist in your home so they will try places you wouldn't.
Tony, Tony, come around. Something's lost and can't be found
- Your Catholic grandma, probably.
(Not mine, she lit a candle to San Antonio instead)