I own a hand-me-down "wrap-cardigan" similar to the one pictured here. I've featured it in a few looks, but never as anything other than an added cover-up. But while looking for a top to wear with this:
|a dark grey body con skirt from Charlotte Russe and gree peep-toe booties from Ross, which mimic the wrapped-effect|
...I found that just as a button-up cardigan can be worn as it's own independent top, a wrap-cardigan can be wrapped and worn all on it's own.
So remember: if you have some extra fabric to work with, or even some stretchy fabric, try wrapping it -- you might just love the look.