I strongly agree with this, but there is a danger:over-engineering, where you build a very generic module where a much simpler one will do. The key point: build

I strongly agree with this, but there is a danger:over-engineering, where you build a very generic module where a much simpler one will do. The key point: build the most specific module that will do the job; if it needs to be more generic for a future application, then you go back and modify it as needed, adding a second interface if necessary. Generic features that have not been used or even tested are basically garbage code.