My good news is that I successfully took DS10 and DS9 to an overnight cub scout outing at NASA, then Saturday morning drove us to Universal Studios, spent the night, played all day the next day and drove home. All safe and sound, my first trip with them alone. DH had to work, so he stayed home with the dogs..and his cold.
I was a little scared driving all that way by myself, but it wasn't bad at all. 4 1/2 hours one way. I am ready to try it for WDW, which DH does not like at all.