Lost Keys

Well I lost my keys.  I had them when I got home on Friday so logically, they should be in the apartment.  I have no idea where they could have gone.  I didn't leave the apartment on Saturday, so they absolutely have to be in the apartment.  I searched for three hours for those keys Saturday morning, and my mom and i searched together for an hour Saturday afternoon.  I think that I'm going to just have them duplicated at ACE Hardware later today.