Everybody is talking about code quality, but not me. Who cares about clean code or design principles like SOLID? We only want to make sure everything stays the way it is because we hate change. If you follow my tips you will no longer have to change your application because it is so fragile business will not risk to break anything and therefore lose money. You will not find any developers staying for more than 6 months because your codebase feels horrible to them. So you don’t have to listen to this refactoring nonsense for long. And if the business asking you to rewrite everything from scratch you can do everything over again and again.