In parallel with reading lots of MG and YA books for my 100 book challenge (and making good progress on that, by the way), I'm also reading The Fire in Fiction by Donald Maass. I occasionally worry that with each new novel, my writing technique won't show much change from the last one. So, picking up a book on writing technique from time to time helps me feel like I'm trying to apply something new in my writing (along with all the great tips I get from my critiquers).
Lately, I've been thinking about scenes. A key strategy Maass suggests is to make sure there is a goal for each scene, so it advances the plot. While I don't get too hung up on these kinds of things when I'm writing a first draft (maybe I should?), I do keep a separate file that gives a short summary of what happens in each scene, something like this example from Novel #2:
1: Molly shows Kayla changes in their house
2: Molly & Kayla speculate about cousins
More recently, I've been writing slightly more to describe what happens in each scene, including the key interactions between characters, ending up with a brief summary that other people besides me could actually understand. It helps me stay on track. But maybe I should be including the first and last lines as well? Any other ways to keep track of what's happening in your scenes?