Refactoring doesn't have to be massive. Perhaps you can get by with a subtle tweak, so long as it's well thought out. Alternatively, if adding a feature demand

Refactoring doesn't have to be massive. Perhaps you can get by with a subtle tweak, so long as it's well thought out. Alternatively, if adding a feature demands a massive refactor, then it might be a warning signal that you've got some fundamental issues with your UI. In that case, it might be worth it to spend the time re-examining the core design of your app. You also might refuse to support that feature. Being able to say "no" is an important skill, both as a designer and a developer. Leaving stuff out is often as important as putting it in.