I lose my phone everyday!!! Like every hour!! Mostly it's either in my hand or in my back pocket but I don't realize that until I've torn the house apart. Just try calling it or ask a friend to call it.
Omg I loose mine about 10 times a day, here is what I do I make my whole family stop what there doing and look for it or call it (from another phone believe me one day I was going to try and call it and I reached down in my pocket to grave it so I could call it) and listen for it to ring or to feel a vibration