Spaced proof review routine

Here are the basic steps I take for spaced proof review.

For each proof/exercise:

1. Do the proof for the first time. This isn't any different from what people normally do when solving exercises out of a book, or when reading a proof in a book. You just read it or do it on a piece of paper.
2. Write up the proof as an Anki card.
3. Do an empty review of proof cards immediately after adding to prevent backlog

Each day:

1. Review all cards that are due (sometimes, if there's too many new cards, I will try to do some of them and leave the rest to the following day. There's a lot of variance in number of due cards per day because of the way Anki works.) When reviewing, I use actual paper and pencil, and write down the proof on paper. I use scratch paper that I throw away when I'm done reviewing. (Any new insight I get when reviewing should be added to the back side of the card or in some other long-term notes)
2. If a proof I write down when reviewing is not the proof that's on the card, I take a moment to reflect on whether the new proof is correct. If it is, I write it up and add it to the back side of the card. (See spaced proof review as a way to invent novel proofs)