I use the ignore script on my phone, 99% of the time for genuine typos because typing on a phone is stupid. I also use the script that tells me if I’m meant to be entering on’yomi or kun’yomi for a kanji. I think that’s kind of it for stuff that directly affects my reviews?
In terms of lessons I just use WaniKani’s ordering so I go through the previous level’s vocab before I start getting into the radicals and kanji for the current level, and I use the user synonym/phonetic-semantic composition double-whammy to add logical extra meanings to some of the radicals.
Other than that, I have the leech script installed too but much like my critical items list I almost never actually check it.