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Dimitrios Kambouris/WireImage 13 / 23 At the SAG Awards in 2003, Jennifer Aniston wore a classic silhouette (for her) -- a slinky black dress with a revealing neckline

After all, what you wear to your bestie's shindig might not necessarily be appropriate for your end-of-year office party or your familial dinner with grandma and grandpa

You got to use your style phronesis with smart casual

The armscye (the hole where the sleeve joins the shirt body) is large enough that it doesnt cause tugging or twisting of the shoulder seam, which allows you to move your arms freely and comfortably

Vertical stripes were trendy as well