Every month both mine and DH salary goes into the same account. We each take out pocket money. Every 6 weeks I visit my home town in the North East to see my mother and step-father (who has a terminal illness and is frequently unwell) which is a 3 hour drive. I stay overnight, sometimes in a travelodge as may not be appropriate depending on step father to stay with my mother (they live in a 2 bedroom flat), or with a friend.
Question is should I pay for the petrol, food for my time there if I eat out and travelodge if I stay overnight, in your opinion out of my monthly allowance/pocket money or should it come out of the joint money?