A good backpack. My mom always got me cheap backpacks in school, and they’d always break about 3/4 of the way through the school year. Sophomore year of high school I finally convinced her to pull the trigger on a mid range Jansport daypack.
Yeah, it was literally 5 times as expensive as any other backpack she’d ever bought me. But it lasted the rest of high school. And community college. And the 2 years at regular university for my bachelor’s. And a year and a half of graduate school. And I have used it at least a few times a year since for business trips since. And it’s still perfectly useable, if getting a bit ratty and faded now.
Actually, people who have had Lasik have reported problems after a certain number of years.
But some people drive more carefully with one installed