When I was young, my dad taught me how to make paper cranes. He still makes them for my kids on occasion. He came over for dinner last night to celebrate his birthday and surprised me with a green crane. I had meant to ask him to show me again how he folded them, since I had forgotten long ago. I had looked up directions online and managed to follow them eventually to the point where I had a decent example and figured out the coordinates I needed, but I still wanted to see it in person. My dad used a much simpler and more elegant way than I learned online, although the results were the same. No guesswork involved, though. And he showed me how to fold it just so, to make the wings flap when you move the tail. Just like I remembered from my childhood.
Thanks for the cache, but most of all, thanks for the memories and the opportunity to connect with my dad over something we shared so long ago.