Otherwise practice makes permanent in many cases. Just hope you're doing whatever it is right.

But then perfect is the enemy of good, which for anyone doing software should remember.

Until a customer or someone important actually cares about that 2px off CSS, that refactor you want to do, or your caching/performance numbers, just don't do it. Wait till someone asks and then get after it.

I love how OP put her work out there to prove her wide array of skills, or more important, her ability to learn random skills. Who else has put out 180 sites for public review?

Awesome!!