You’ve spent the last 20 months figuring stuff out: who you are as a mom, who your kid is as a person, how to fold a Pack 'n Play (or jam it into a closet unfolded). But while you’ve been wrestling with big parenting questions (separation, sleep training, what was that she just put in her mouth? She swallowed it? Never mind), their little lives are rolling on by. Yours, too. Ready for more parenting advice? Here, 22 things you simply must do before your baby becomes a toddler.