I'm not joking, I promise.
It looks like this except ours is plastic, not ceramic.
You use it to sloosh out your nose. It's not terribly glamerous, I'll grant you, but you do feel ever so clear and zingy when you finish!
My friend recommended it and now I have the whole family neti potting on a regular basis.
I have taken to preventative neti potting.
Dh has a dreadful cold and has been neti potting to clear it all out. It really works! And it's so satisfying.
Does any one else neti pot? You should!