This is the most advanced, the most sophisticated, the most utterly sartorial sock-drawer in all the land. A symphony of stripes, a cavalcade of solids. Here's a subroutine that's out of this world!
We have the Subroutine of Subroutines, which is a Subroutine of Subroutines of Subroutines, which is, in turn, a Subroutine of Subroutines of Subroutines of Subroutines. And so on, and so forth.