Setups
Save an arrangement once. Say its name to get it back.
Arrange your Mac the way you want it, then save it. From then on, one word rebuilds the whole thing: apps launch, windows return to their saved spots and come to the front, and browser pages reopen in the browser they came from — not whichever one happens to be default.
The scene comes with it. Volume, brightness, light or dark, music, and a quiet arrival chime all apply as part of the setup.
When it's done you get a receipt card: exactly what changed, with "Put it back" for a one-step undo and "Close the rest" for everything that isn't part of the setup.