I might be the last person to realise this or the only one who thinks its interesting, but it appears Karen wore her own shoes in her brief appearance in Closing Time.
The shoes are the Carvela Scarp in camel. Here's a screenshot of the episode:
And here's a candid of Karen from around that time:
Anyway yeah, I think it's interesting when they wore something from their own wardrobe - like Alex with River's jewellery!