What if your Plan B is to act "as-if" you are already partners in parenting your kids? And act as if his wanting to take them to daycare is his way of helping you... (let's face it, this has become a power struggle, cuz it ain't like driving to daycare is the most fulfilling part of parenthood)

example... he says he wants to take them in the morning.

Heather "Really? Wow... gosh, thanks. It really will be a treat to get that extra half hour sleep in the morning. You'd do that for me? Tell you what... you do so much work with the kids I'm gonna find a way to give you a little "me time" too. Hmmm... how about Thursday nights I take them to *** (restaurant, playzone, mall... wherever would be fun) so that you can do whatever you want also."

Act like you are a pair of loving marrieds who are just looking for ways to make each other's lives better (maybe you can trick him into making it the truth ). And then you can get a little alone-time with the kids too, plus a sleep-in.