> In fact I try really hard not to touch it so that I don't get smudges on it.

Glad I'm not alone. Unfortunately every week I have to clean it from dust and also smudges that gets passed from the keyboard when you close the lid.

Get a custom-made cloth or use a thin microfiber like a lens cleaning cloth and put it between the keyboard and screen. Whenever you close the computer. Keeps the smudges off and prevents key shaped wear marks in your display.