Re: Casey's "new" look - sweater dressing. I wracked my brain for a couple of days the last time that Casey had wrapped her sweater around her waist. I knew that there had been a line of clothing from a few decades ago that featured that style.
Those of you who are old enough might remember
Multiples and Units by Sandra Garrett from the 1980s. For those not familiar, these similar lines consisted of modular pieces (units) that could be mixed and matched for different looks. There were pants, skirts, tank tops, long-sleeve tee-tops, wrap sweaters, cummerbunds, scarves, etc. The pieces came in black, neutrals, and different seasonal colors with basic units in solid colors with a few stripes or dotted pieces to mix and match.
Multipes and Units were cotton knits that washed well in cold water and required no ironing.
I remember having a tunic top that I wrapped at the waist with a contrasting cummerbund. Worn with pants or the straight skirt, the loose-fitting tunic was similar to Casey's wrapped-sweater look. Everything old is new again