Whoa. Is it just me, or did a ton of people have nightmares last night? Even those of us who don't usually have them?

What do you do when you have a nightmare? When I was a kid I figured out that I could will myself to go back into the dream and resolve things to my benefit if I could get over my fear. But I'm a freak, and I don't know anyone else who can go back into their dreams at will.

What do you do when your kids have nightmares? How do you comfort them, and how to you teach them to comfort themselves?