That happens to me a lot. The best thing I find is to stop looking and switch to another project and 15-20-45-100 mins or days later I usually stumble across what I was looking for. Not always though, somewhere there's a green Bosch driver with a small Tek screw bit in it. Fortunately I have multiple spares of these bits as I have lost these many times and ended up buying and the of course finding them again. Not the Bosch driver though. DANG!