Wore glasses for almost my whole life. Never touch them with your hands, don't splatter foods when eating, position them so your lashes don't touch them if possible. I always keep some microfiber cloths and lens cleaning solution at my desk.

But got lasik over a year ago. Sure the dry eyes are a pain in dry weather, but it's nicer than not having to worry about smudging my glasses. Also, even though there is some light flaring at night if my eyes are dry, it's not as bad as when I get them with glasses that have microscratches on them.

I still notice when other people who have glasses have smudges all over them and they seem to not be bothered by it. Even I'm bother by seeing it imagining how bad everything must look. Hell, even a speck of dust annoys me while wearing glasses if it's in the right spot.