I visited my old neighborhood a few years ago with MrPL to show him where I lived. I found it to be a great visual stimuli to bring back memories... to see the park, the school, the neighboring homes....
I haven't been back since and probably don't plan to see it for another couple of years, maybe with my children.
I also keep track of memories by thinking about the places I have lived. And with every home that I move into, a part of me grows up, just a bit.