OK so maybe demagnatizing isn't a word. But it is a problem.  I have an IPhone that likes to kill every hotel key I'm issued and I am constantly stopping at the front desk to have my key refreshed - or if I forget, going up to my room only to realize its happened again and back I go to the front desk.  This Wallet kills 2 birds with one stone.  I can put the passport into the wallet in an open position so I don't have to remove it from the Wallet at customs or security, saving time as we all race to juggle our ID's and take off our shoes.  And then I slip my new hotel key into the wallet and it does indeed keep it fresh as well as provide a secure place so I always know where I stashed the room key - I even keep the key folder here so I can remember what room I am in today.  Also a bit more stylish - I have the wine cover and it is easy to find in my dark purse or briefcase interiors.