Although I ostensibly do this to allow her to interact with her friends and other peers, I also use this time as my own social hour. I met my now-best friend in a Lamaze class when we were both pregnant; our children were born two weeks apart, so they have been friends practically since birth. Luckily for my friend and me, they get along marvelously well, which enables the two of us to interact on a regular basis.
We have a standing Friday tradition: first a play date at the park and then a dinner date at our favorite pizzeria. We each have a Valco Baby stroller, which allows to pack all the essentials for our day out on the town. We will pack a picnic lunch; generally, we divvy up who brings what. For example, one week, I will bring the kids food and drinks and she will bring food and beverages for us, or vice versa. After lunch, we let the kids play for a while, and then we head off to dinner.
Our strollers allow us to easily transport our children and take full advantage of this lovely autumn weather.