[KillerRAK]

When it comes to code readability, and ultimate reusability, I believe renaming variables is where most time refactoring is best spent. Not only does it encourage better naming, but if the naming or paradigm model is off, it encourages better design.

[logn]

I'd vote for removing dead/useless code, reducing scope/visibility, making things immutable, and running an auto-formatter. In the case your code is being re-used by outsiders, in an API or something, yeah bad naming ends up being awful.