Wheres the blessed~~~~~~???????

Theres an invisible 'someone' in my house & he's driving me NUTS!! Everytime I put something away, along he comes & moves it!!I turn the house inside out, searching in the most unlikely places, getting more & more annoyed & agitated~whilst he stands there snickering!~ I'd whump him one if I could see him!! Then, when I've given up the search, HEY PRESTO !~ the very thing I've searched for appears right under my nose!! Sometimes he varies the game by waiting till I've bought a replacement for the missing item ~then returns the original, so I now have two! ~ then in the blink of an eye BOTH are spirited away!! NOTHING is safe from his attention, at the moment he's taken the TV remote, my hairbrush, Bryns frisbee & the thingy that undoes the radiator wotsit~I'm fed up being stuck on some weird sky channel~my hairs a mess~Bryn's got the ummphh & the radiator is gurgling like a Sumo wrestler with bloat!! How do you get rid of gremlins?(I keep looking at the liquidiser!!) How do I catch the little beggar? Can you buy humane gremlin traps? Is there a bug spray that will work? Is there such a thing as 'gremlin busters'? SUGGESTIONS PLEASE !!!!