There’s a new cool-girl sweater trend taking over fall fashion, and Kristen Bell is already ahead of the curve. The actress is making a strong case for swapping basic knits for retro striped polos, which bring a playful, preppy twist to everyday outfits. Fortunately, we found a budget-friendly way to recreate her look without spending hundreds. Bell was spotted in SoHo wearing Guest in Residence’s $445 Grizzly polo sweater, featuring bold blue, red, white and brown stripes. She paired the colorful knit with ultra-wide-leg dark-wash jeans, a burgundy Chanel bag, a red hat and black lace-up shoe...