No advice on moving from line to line? Word and character movements are great (and well worth learning), but how do you suggest moving to just the next line without spamming `w`?
If you want to go to the same cursor position on the next line, definitely j is the way to go.
Much of the time, I want to go to a specific part of the next line. In which case, let's say I want to go to the parse function, I'll do "/par<enter>".
I don't see those as an improvement (i.e. worth committing to muscle memory) for `j` and `k` that would incentivize me to no-op those two keys. You can do `4j` as well.