Coming in late as usual, but I've enjoyed reading all the responses and the warm fuzzies of everyone thinking about their favorite items.
I must say that the item that gets my love is a gray and white leopard print cotton gauze scarf that I got at Kmart for $3 on the clearance rack. I have worn it with everything and on all occasions, it is soft but not flimsy, lowers the contrast in other outfit pieces, and is light enough for warm weather. It casualizes a work outfit and dresses up a knit top and jeans.
Second place is a gray with thin black striped sweater, bought at JCPenney for possibly $15? I like it for the same reasons, I think. It always looks nice, feels comfy, doesn't bag out during the day, washes well, and is more polished than a tshirt.
Have a good holiday, everyone! If you are receiving gifts, may they fit well, live long, and prosper.