Wet glass material

Hello there!
I’ve been looking for tutorials/screenshots of how to set up an animated wet glass material for a while now, but only found promises of those tutorials Soon™.
So I’ve made my own material. With blackjack and hookers. Maybe not. But I thought I’d share it:


And here’s the material setup:


Haven’t bothered with the little droplets yet, I think those are simple enough.
Still have a few things to add (more streaks, with different speeds, maybe with animated textures instead of a panner shudder)
Suggestions are welcome. Like “OMG that is SO inefficient. Here’s how to do it” : )

Also! Question: Is there a way to layer this onto other materials? Or do I have to apply it manually on each because translucency is a female dog?