Last night's red carpets brought sheer shirts, ill-advised jumpsuits, and tragic floral muumuus. Need some tips on what not to wear this weekend? Here are some pretty good ideas. Let's start with Kristen Wiig. She rocked a floral sack dress in lurid, Floridian pastels paired with pointy-toed, sparkly, possibly-denim stilettos, and a messy top knot.