There's an app that I recently downloaded that I check almost every day. Timehop is an online time capsule that connects to your social networks and shows you what you were doing one, five, however many years ago on that day.
I also scrolled down further in the Timehop app and it showed me what I was doing nine years ago today. Funnily enough, I was with that same friend and some of our other friends on a night out on the town. Thanks to Timehop, I'm reminded of some fun nights we had in the distant past, and some more recent fun nights we've had, just a year ago.
For someone who's memory isn't the best, I like having Timehop remind me what Elizabeth was doing four, six, nine years ago. It lets me reminisce about the person I was then and how much I've grown and changed since those years. If you don't have Timehop yet, why not download it and check it out? You might be surprised with what you find!