what to get an old lady for christmas

Well, you could always get her a nice scarf or hat. Older women also tend to like cozy things like blankets and slippers. If she's into crafts, maybe a gift certificate to a local craft store or a set of knitting needles? Or if she's into reading, maybe a book or a subscription to a book club? It really depends on her interests and what she likes to do in her free time.