Busy Philipps looked absolutely lovely at the People's Choice Awards nominations in a green silk shirtdress and rich mahogany knee-high boots for a look that channeled the season's '70s trend in the best way. Somewhere, Mary Tyler Moore is having a little outfit envy. The key piece? The right shirt dress. In this case, you want it to be a flowy material like silk or crepe de chine, with long sleeves and a fuller skirt. Pair it with boots in cool weather and loafer pumps or an ankle-strap heels in the warmer months. Case in point: check out the runway looks at Gucci and Chloé. We did some hunting and found our top options for both shirt dresses and a gorgeous pair of knee-high boots to go with them.