Odd as it sounds, for me impractical means any garment in black because of the upkeep due to having dogs and cats. I wear a lot of black, and because I have a light gray Persian Cat and fawn and black pugs, all of which shed constantly, I also have about six sticky tape rollers in my house, car, at my office when I used to work outside the home, etc. But I love my black pants, skirts and coats, so I keep wearing them, and picking off the furry clumps.
I am, for the most part, a very practical person. My wardrobe is filled with items designed to play well with others and see hard and long use. Not a lot of "fun" items in my wardrobe; not a lot of whimsy. Definitely NOTHING highly formal or party-ish as I have no where to wear those items.