I don't really have any ideas, and personally find those types of get togethers hard as I have a child, but just wanted to say I agree. We had a neighbor (literally right next door as a matter of fact) at our old place that if we ran out of milk or she ran out of juice or whatever we could ask for a cup and return it or not later and we took the kids out to play together a few times a week, watched each other's kids once in awhile so the other could run to the store or go to a doctor's appointment, sat outside and chatted in the evenings/afternoons while the kids played, etc. It was nice to have someone like that and very close, and I agree that I miss that around here. My neighbors rent on one side and have been here for over a year now and yet I've only seen them a handful of times, my attempts at drumming up a conversation have been squashed, I have no neighbors on the other side just a vacant house, so I agree that meeting neighbors literally on my street would be very nice.