FrodoVagins - No - my DD is not reacting to any favouritism on my behalf. I have told her that any of the children are welcome to come and stay with me overnight - individually or perhaps two/three at a time at the most. Only one DGD asks if she can come and stay so that is more regular. Apart from that I am usually asked to look after DGC at DD's house - which doesn't particularly suit me but is the way DD prefers. Up to now I've done as much as I can. The requests were not so frequent when I was married (divorced 4 years now) and then looked after my own DM until she died 2 years ago. Since I am now a "free agen"t the number of requests have increased steadily - along with the growth in my DD family and her work commitments.
Feeling uneasy with tradespeople in the house.