I've tried several things from Pinterest and some work and some don't. I received several criticizing remarks from certain family members who thought this wouldn't work. Well, it does.
Idea: Put a wooden spoon across the top of a boiling pot of water and it won't boil over.
Well, I tried it while making mac and cheese for the kids the other day. While, I do not intend to let my pot of water boil over, it has been known to happen in the midst of potty training, filling sippy cups, etc. so the extra backup is definitely nice. So, yes, this actually works.