I have two prescriptions of glasses, far and computer, and a backup of *each*. Guess who brought with him two of one kind, and one of the other.

I was wearing my faraway glasses, needed the others, then fished around in my bag for the other ones. Put far glasses in the case, pulled out the "near" ones.

Wait wait no, these aren't the right ones. So I go back into my bag and pull out the *same* case again.

How many swaps do you think it took Yer Boi Einstein to actually get the right ones?