DH and i got home from our ride yesterday afternoon and the battery to the remote garage door opener was dead, hence we couldnt get in to the garage hence we couldnt get in to the house. We gave our neighbors a key for just this situation. But i think you have a better idea, to put a spare key somewhere on the bike - matter of fact i think i'm going to go put a key in the underseat bag right now so i dont forget!