Last week we got this wonderful email from our friend Richard Primus.. I think it speaks for itself.
Brian and Marsha,
Last November, when you visited us in Ann Arbor, Rafi walked out into the back yard and almost immediately said, "I'd put in a French drain, right here."
So you'll be pleased to know
that when the spring rains came, we had drainage problems in the back
yard...which we have now solved quite well by putting in a French drain.
If only we'd listened more quickly.