Just so you know, I am in the same boat as you GH; i.e. no babysitters. On the upside, my brother and his family are moving 5 minutes from us next Wednesday. My H and I are planning to use the "tuck and roll" with the kids alot. You know, we pull up to their house, see that they are home, slow down enough for the kids to get out of the car then peel away and pick them up a couple of hours later - just kidding, but will definitely take advantage of their nearness.
I too think it is crucial to have alone time with your spouse. If there is a will, there is a way!