We wrote about the 40s style and the 20s style. Now it’s time for the 30-year-olds to have their fashion tips from us too. But unlike what we’ve written previously, this article will outline what not to wear in your 30s and how to dress up instead. So have your wardrobe list in mind and mentally take note of dresses you have to donate to others. Cheesy and sentimental prints on tees We know you’re awesome, but really? Your shirt has to say it out loud? In your teens and early 20s, you might…