I’m not sure why I loved fourth grade so much. Maybe it was because my teacher was extra pretty and her name was Mrs. Hunt. (Who could’ve guessed?) Or that I sat behind Rick Collier, voted by all the girls to be the cutest in our grade and the entire universe. For sure, it had something to do with “My Weekly Reader,” our very own kid-size newspaper that showed up on our desks after recess every Friday. I have to hand it to the genius who came up with that idea. We had no idea we were learning important current events and other stuff that would stay with us for a lifetime, like Roy G. Biv. I swear I’ll never forget that guy. No Friday in the fourth grade was complete without a few fun facts, not unlike the following about credit cards: No. 1: The very first credit card …