About 3 years ago, I started tutoring the girl in math with an eye to her taking the ISEE about a year later. Once she took it (and did very nicely,) I started working with her brother.
He's taking it right now and is about half-way done.
It's hard to believe that I won't have to think about it any more, and neither will the kids.
Fingers crossed. We get his results tomorrow.