The Medicine Cabinet

Every single day you wake up and go to your medicine cabinet to take your medicine. And there is always an object next to your medicine that you will need throughout the day. You seem to always know why you need it.( like for example when your glasses break even wake up next morning to find a glasses kit). One day, you wake up to find a knife next to your medicine. You don't know what you need the knife for but you automatically assume that you're going to I need the knife throughout the day no matter what it may be for.