Screen Protector

I am always very careful with all my Apple products and always try and buy screen protectors for them, as I usually pass them on to family members or sell them if/when I decide to upgrade. Last year I got a Macbook Air the first and wasn't aware that there were actual screen protectors for them, as they were not available in my local Apple Store. I was curious to see whether anybody actually has a screen protector on their Mac and whether they would a recommend me getting one?

Thanks 🙂