Pick a dress that looks super without the cardigan. Since it's small, a cardigan won't cover flaws in the dress the way a larger sweater would.
Pair jewel tones, especially plums and garnets, with charcoal leggings and a charcoal sweater. Tights with vertical indentions work as well as smooth ones.
Wear tights the same color as your dress, then match your cardigan to your shoes. This look rocks with a tan dress and tights with a red cardigan -- especially on pale-eyed blondes -- or a green dress and tights with a white cardigan. If you have broad shoulders or are full-figured, keep the cardigan dark and closely fitted.
Try on striped tights with a solid dress and cardigan -- but make each larger piece match one of the stripes on the tights. It's a super fun look, especially with a cute pair of heels. Keep everything you wear with the look in the same color, except maybe a fun flower pin on one side of the cardigan.
Pair a polka dot dress and white tights with a black cardigan with pearl buttons for a look that's super fab for early winter.
Find a belted dress, then match your tights to the belt and the cardigan to the dress for a style that's chic and sleek.
Make sure everything you wear fits perfectly and that the tights have no runs. Attention to detail pays off.
If you wear patterns or wild colors, tone down the jewelry.
In most cases, match your shoes to your tights.
It's cool to wear a small cardigan that doesn't have buttons -- but be sure you're dressed warmly enough to stand up to cooler temperatures.