It's not worth doing things "the right way" right off the bat because you might not know what that is. My first version was literally a linear file of statements and console output.

Once I got something working and understood the problem space then I could back and fix it up. The final code looks like nothing like the original prototype although at no point did I actually throw it away -- I just transformed it heavily -- but the theory is the same. It started as a console app even though the final product was not one.