...contact lenses.

Specifically fresh ones. The first time you put them in and you totally can't feel them compared to the month old ones you had in yesterday? Amazing. But I'm thankful for contact lenses in general, because it's easier to play sport and to go from outside to inside without having to swap glasses. I love being able to just push my sunnies up on my head. That said, I quite like wearing my glasses sometimes, and I'm thankful for them too.

Being able to see = awesome.