I fully support the vasectomy idea. I had one myself after our 3rd child.
(Of course, I was all excited about it and the prospect of more free, more enjoyable sex, but for some reason my W was not sharing that with me...and then 1 month later came the bomb. The EA had been going on all along.)
But even with that, the vasectomy brought me a ton of relief. I always hated condoms!
Me 42, W 39, S8, S6, S2 M 11y, A & ILYBNILWY 11/08 Walking away from a bad situation.