what to get my grandfather for christmas

Well, that depends on what your grandfather likes and needs. Does he have any hobbies or interests that you could get a gift related to? Perhaps he collects stamps, enjoys gardening, or plays a musical instrument. Or maybe you could consider getting him a gift that would help make his life easier or more comfortable, like a new sweater, slippers, or a blanket. The possibilities are endless, so take some time to think about what would be meaningful to him and show him that you care.