Every week a Guardian Money reader submits a question, and it's up to you to help them out - a selection of the best answers will appear in Saturday's paper.
Should grandparents be expected to look after their children's children?
This week's question: My sister has dumped her 1-year-old child on my mother for three days a week while she goes out to work. It saves her a fortune on childcare but my mother is 67 and finding it a real strain. The money's useful but my sister isn't really broke. Should I confront her?
What are your thoughts?