Good Unity Scripting Habit

Code management? Scripting habit? Techniques?

We just scripted a bunch of functions, but when something decidedly changes name...
like using Main camera into splitting it to 2-3 camera say, camera1, camera2, spectatorcam, and so on...
we must change almost everything using the find-next-replace.
Those are one of the simpler case but i worry if we have to tackle more further in the future?

Is there a habit to document troubleshooting? Or perhaps something practical to ensure our code mobility and flexibility?
We're a team of two and we rely on concept art to guide our design mostly.

 

Sounds like it's time for you to learn about refactoring.

 

You want to avoid using strings if at all possible. This makes refractor img much easier.

 

Well now this is complicated...

I haven't even done my homework on...Inheritance, polymorphism etc