I practice Dirk Gently Driven Development. Basically, I more or less know what I want to do, my fingers wander, encounter things I didn't anticipate and I modi

I practice Dirk Gently Driven Development. Basically, I more or less know what I want to do, my fingers wander, encounter things I didn't anticipate and I modify my work. When it is done, I refactor and add tests where necessary. Not the best methodology, but that's how my brain works -- all situational recall.