Made a phone call to ask what we should bring.
"Oh, just bring yourself!"
Of course I'm bringing myself you idiot. You invited me. Why wouldn't I bring myself. Why don't you just say, "We've got everything covered. It's our party and we're not cheap-A peeps who throw a party but make everyone bring stuff."
If I invite you to lunch, I pay for lunch. If you throw a party, you buy everything.
Please stop saying, "Just bring yourself!"