Also management / pacing. Never tried it but maybe allocating one day every two weeks for codebase cleanse. Or clear headed review. And accepting that coding requires messy exploration and therefore there's always a need for post-hoc post-rest work.
For me the hardest part of codebase cleanse is not the refactoring. It's the thorough testing and ensuring that the modification didn't break any existing functionalities.
One day every two weeks is not enough. Better a week every 2 months.
I never did it and was mostly speaking but I was afraid a N months would make the amount of changes to clean too large. It would be nice to ask people in various companies how they pace it.
