DP and I have booked the whole of Christmas week off until January 2nd, since we have the holidays to use up. We have been really really busy lately and would just like some time to relax. We are planning to go to DM's (3.5 hours drive away) for 4 nights over Christmas, then just come back and relax/do some overdue chores/errands. However, DB and family are going to visit DM the weekend after Christmas (just after we leave) for a couple of days, plus my aunt has invited us over to her's for an extended family get-together at the same time. It's a shame we won't get to see everyone, but staying for all this would mean we would be there for a whole week!
I don't know how to explain to DM that we don't want to spend the whole week up there. She knows we have the time off, and I feel a bit mean saying that we just want some time to ourselves when we don't get to see family that often. Last time I saw DB was in October. Extended family I haven't seen in ages.