I did eventually find it--in a place I had already looked--by hulking out and smashing some stuff.
I still haven't found the charger to my electric shaver. My shaver got low on charge, so I went to get the charger from where I knew it was. In fact, I knew there were two of them there.
Ok, certainly at SOME point there were two of them there.
I've done the same drill as for the screwdrivers, but it just hasn't turned up in probably over a week. So I know that the me with the other brain has hidden it away somewhere SO CLEVER that nobody else--especially the me with THIS brain--can ever find it.