My wife and I have both grown up with dogs and currently own a lovable boxer named Lucy. She has been with us for 3 years and we frequently dog-sit for many of our friends.
We have a large house (For SF) that also has a great large-ish fenced-in backyard. Lucy LOVES other dogs and is thrilled to have playmates!
Every weekend includes trips to Funston and other beaches/hikes with the pup!