I don't know about you, but I lose things. I know you should have a place in your home or office--a special place--for things like your keys, remote control, cell phone and wallet. That alone usually works if you put these things in the same place every time.
If you misplace items all the time, you could get the key ringer (keyringer.com).
Here's how the key ringer works: Simply click the find button on any KeyRinger to find an item attached to any other KeyRinger. The missing KeyRinger responds immediately with a loud distinctive tone and a bright flashing light.
Pretty interesting concept...If you lose your keys with a key ringer on it, you can go and get your remote control and use that to find your keys.