As a 20-something (or even a 30-something), you realize that adulthood is, well, a gradual process. For some, it happens quite quickly. For others, growing up takes a bit of time. And there's nothing wrong with that! But let's just say . . . when you've made it, you've really made it — although it's a little bittersweet. Here are the 31 signs that you've made it — read 'em and weep (like really, you might actually start weeping).