We always thought of professional-grade makeup brushes as something we would acquire as full-on adults, like fine china or an investment portfolio. After all, what would be the point of splurging on a set of finely-crafted tools that would last forever when we hadn’t yet developed the wherewithal to take care — or even keep track — of such things? And yet, years after college graduation, we’re still using whatever random brushes remain from sets we don't even remember buying. (And for the record, we still haven't purchased a full set of dishes, either.)