A story about our first Valentine’s Day in preschool, where I get to revisit the fine tradition of exchanging little Valentine cards. Read on as I transform from mocking mother to Pinterest panic mode, and handmake all his cards the night before the party. I don’t know what happened. WHO AM I?? It Started with Simple Cards When I found out my son’s class was exchanging cards, I marched myself right to the drugstore and got a box of Lightning McQueen cards with stickers. OK, first thing I really did was look for them on Amazon and saw that they…