I slept in. I slept in because I was worn out after my son and I spent the weekend getting the engine and transmission out of my MGB. While I was ultimately successful, it was a lot harder than it had to be because my auto mechanic skills were so rusty.
The effort was everything I hoped it would be. My son stuck with the project cheerfully and learned that real life isn't as neat and easy as a video game, a book's ending or a homework problem in math where the answers all magically come out to something as simple as x=4.