Very interesting comments, everyone -- thank you! Ginger, what I'm noticing is that duplication seems to work best for those, like you, who know their own style very well, have a strong sense of what cuts they prefer, and also love colour and get variety that way or via scarves and accessories (as Zaoebi and SarahDB also mentioned.
SarahDB, you are right — on first glance the word “refresh” and the word “duplicate” don’t seem to go together, which is sort of why I started the discussion. But on reflection, they are not so discordant. Because the “refresh” part had mainly to do with a major shift in silhouette and proportion. I went from wearing mostly slim straight bottoms (with some wide leg crops) to pretty much all wider, looser bottoms, some of them full length. That in turn required different shapes in the top — few slightly oversized, slightly shorter sweaters and toppers and looser shirts.
I still wear jeans (but a different cut); I still wear knits (some exactly the same, I.e. classic tailored to fluid fit, some slightly oversize). And I still follow the same basic outfit formulas, I guess.
Jaime, you probably have some duplicate jeans, or at least the style is a dupe, right? BFs?
Ket, what colours did you get in the dress?
Julie, wow, you are vying with me for the title of Queen Blue! LOVE all those blues and I want to duplicated your duplicates!