We are not going to be at home for Christmas day, going to relatives on Christmas Eve for 5 days.
Not sure whether to get a small (real) tree for our house, even though we won't be there.
If I got one, we would put it up on 20th so would have it a few days, then for a week or so after we get back after Christmas.
Part of me (and all of DH) thinks it would be a bit pointless, but I think DD would enjoy having one and decorating it etc (she is nearly 2) even if it wouldn't have presents underneath it on Christmas morning.