I've noticed it mentioned a few times on these boards by SM's that whenever you holiday with the whole family including the SD's that you leave it to your DP/DH to pay for his children's share of the cost.
It got me thinking about it in terms of a financial point of view. We have a joint account that we pay our bills out of and then we have our own individual accounts with our own money. However, when we go away on holiday or day trips we pay the cost out of the joint account whether the SD's are with us or not.
I was just wondering how it works for people on here? Do some of you work out how much extra it is for the SD's and then your DP/DH pays the difference? Does this not cause arguments doing it this way as its separating the families rather than it being one family too?