Starting to pull some wires and wire up the sub panel circuits.
It's good to keep it tidy because there are going to be a lot of wires in there.
If you have a dishwasher and a sink disposal, you put two circuits on one outlet! I told you there are a lot of circuits! You get to break these little tabs on the outlet that connect them together. It's a very special experience which is most commonly done for this exact application. Also done for switched outlets used for lamps but that's pretty rare these days. This house has quite a few of them.
If I had room for a dishwasher, I would be averaging one outlet per circuit - I have one counter circuit that has two outlets. Seems crazy but I think the reason for that is the modern American Dream is to have your kitchen remodeled every 10-20 years so the sub panel makes this easy.
Sub panel is done! I double checked each circuit with a beeper before labeling. The black plastic hole cover is only needed if you accidentally break out more grey metal tabs than you need to.