It's almost the same in my house, "Have you seen my keys?" followed closely by "Can somebody call my phone?" My wife loses her keys at least 2 or 3 times a week. Sometimes it's her car keys, sometimes her work keys. I have a spare key to her car that I keep on it's own key ring because I have to let her use it so often. The worst is that after spending 10-15 minutes looking for her keys she for some reason blames everyone else for running late.
My wife is also the one who loses her phone most often. The kids lose theirs, typically between the couch cushions, about once a month. My wife loses her phone about once a week. When we do find it the places it was hiding are baffling, in the pantry, in the fridge, lodged about a foot deep in-between the mattress and the box spring, once inside the box spring some how, in the clothes hamper, under the coffee table and other such odd places.
One time she was looking for her phone because she was waiting on a text and I asked if she left it in the car. So she went out to the car and there it was. About 10 minutes later she got the text which meant it was time to leave the house, except she couldn't find her key. The keys that she took out to the car so she could unlock the door, literally minutes before. I asked her "Didn't you just have them in your hand to get your phone?" and "What did you do with them when you got back in the house?" She got mad and said "How should I know?!" which I had to bite my tongue and not give the smart Alec response of "The keys were in your hands, have your hands been attached to your arms all day?"