First, I would like to announce that I am at this very moment sitting in heaven. It's a place called Whimsy located a few towns over from me, and it's a half-cafe half-play space where you can hang out and drink coffee and use the free WiFi while your children get their organic toy on (in Northern California, apparently, toys are not toys unless they are Melissa & Doug toys). Your children are watched by a bunch of lovely young women who will come get you if they need something, but basically:
You are alone. In relative silence. With coffee.