Ok, I found mine after it was lost on the passenger seat of my car... how on earth it got there! Were you in the car? Don;t laugh, but check the refridgerator. I've put the remote contrl there for the tv once. Who was the last person you spoke to? If you remember the conversation you might remember what room you were in and what you were doing. If you put it down in an odd place you might remember (like I put the TV remote in the fridge because I had it in my hand whle I walked to the kitchen for a drink... got the drink and left the remote sitting on the shelf )

Good luck!