Oh, for sure this will only appeal to folks in the centre of a very specific venn diagram, but I figured if they're anywhere, they're here on FlyerTalk . It's only a happy accident that I have records of all my flights (dates and route, at least!) - I had minimal interest in aviation growing up, and didn't get on a plane until I was 21. Fortunately during the stage between that first flight and realising that this was a topic that interests me, I kept either my boarding pass stubs, booking emails, or both, so was able to figure out my history to that point. Still sad that I didn't pay attention to aircraft types - and even sadder that I wasn't chasing airmiles!