One cold-weather staple every girl should have in her closet is a sweater dress (at least one). They’re practical, because they keep you warm when the weather’s not, and they’re super comfortable! Plus, they’re easy! Sweater dresses the perfect go-to piece for a day when you’re too lazy to try to put together an outfit — you can just throw one on with a pair of tights, leggings and your favorite shoes (heels, flats, boots and wedges all look great with them), and you’re done! And what’s even better is they don’t have to be expensive — here are some great options for under $20 a piece! For prices that low, I’ll definitely be stocking up.