Such pieces as a dark green print crew-neck sweater and skinny jeans are an easy way to introduce effortless cool into your casual styling routine. When this ensemble appears too polished, play it down by sporting a pair of olive athletic shoes. Keep this look in your front hall wardrobe when spring sets it, and we guarantee you'll save a ton of time brainstorming for a look on more than one morning. This outfit proves that getting into your 30s is no reason to shed casual style altogether.