My cousin, a professional musician, parted with his stage piano recently, so now I have it. Since I last took piano lessons during the Reagan administration, I worried I'd have to start from scratch.
Nope. I remember a lot of the pieces I worked on as a kid (mainly from the Anna Magdalena Bach notebook), and I'm even making some of the same errors I did back then. It's pretty cool. And I found most of my old books, including exercises, which I'm also doing just fine except that my hands aren't as strong as they were when I played every day.
My goal for the remainder of this year is to get back to the level of skill I had in 1983. We'll see.