Anybody know where this goes? I think it fell out of the wiper switch assembly but I can't see where it attaches. Many thanks.

Grounding tab that goes in the upper right hand corner of wiper switch.

Yup. This question comes up a lot.

Here's a pic of it on the stalk (not mine, recycling the image because I'm so green):

Thanks folks!!!

What's the washer on the black plastic plunger for?

washer? that's a fitting that the black plunger goes through. No washer there...

Are you sure? I ask because after reworking the steering column switches, I discovered a tiny "left over" washer in my parts tray. Thanks again.