I keep the duplicates in the display boxes. I might set up the complete cantina band when I make a display. I also might do the helmetless Vader progression thing, like others have done.
More on the pics, I have hybernation sickness Han, he's just in the carbonite slab right now. Also, I noticed that IG-88 is blocking my white pauldron sandtrooper. I am planning on getting the two carded figures I'm missing eventually, and then MAYBE getting a 12' Fett. There's just a lot of money being juggled around...