I promised you ruffles; here they are on a brand new housecoat. The pattern actually calls for ruffles to define a faux yoke, but that was definitely too busy for me.
I limited my use of the ruffler to the cuff. Look at this dainty thing! Both edges of the strip are finished, then the ruffle foot is run down the center of the strip, causing a double ruffle. So grand!
And I want to say this: if you have never had the experience of wearing a floor-length garment around the house, you are missing out. It's just fun.