Actually, I think someone did warn me that it was a pain in the patootie (was that you, Mom?) But I had to do it anyway. And I had to choose the largest room in the house. But it does look a lot better now in ivory instead of the gray-white that it was before. And now I share my top 3 ceiling painting tips:
1. Use ceiling paint. It's specially formulated to not splatter as much as regular paint. Having already painted half the ceiling in regular paint, I can attest to the fact that the second time around, I had less paint on my face and in my hair.
2. Don't bother trying to use the "long arm" paint roller extension. I found it hard to control. Get yourself some saw horses and a strong piece of wood and make a scaffold, and use a regular roller. And see #3.
3. Use a small paint roller. Paint rollers are heavy, and holding one above your head for the better part of a day is painful. A small paint roller may take more time, but it was MUCH much easier.
Now that I know these things, I might actually be convinced to paint another ceiling someday. But I think that's a long way off.