Often the ones you don't see.
When it comes to the work I've done on my 2002, I've taken things to obccessive levels; applying the mentality that if i'm going to remove, or install something new, I'm going to spend the time to make that part or piece as perfect as possible.
Take, for example the simple water pipe shown. I went through the effort to file down all the casting marks, manufacturing sprews, and chamfer/bevel all the edges so that the form was as pure as possible.
Then, after it was painted I went to the next level of facing all the molded text details so the raw aluminum shone through the black wrinkle paint.
They're details probably no-one will notice, but I'm proud that they're there. And, when the next steward to Brunhilde takes her apart, maybe they'll see the love and care that was put into the little things.