Confession: I own about as many cardigan sweaters as I do pairs of jeans. What can I say? When you find an ultra-versatile staple that wears well year-round, it’s worth grabbing in every color.

Since you can choose from 30 colors and patterns, the same shopper suggested “getting it in [many] colors to build your wardrobe.” Currently, the classic black is up to a solid 62 percent off, with ...