Looking for a wee bit of advice. Staying with my sister and the family have asked for some lodgings. There are 4 of us, 2 adults and 2 kids. We buy our own food and they said they are not looking for money for accommodation but are leaving it too us to work out how much we should give. Obviously just landing here we don't have a clue as to what cost of gas, elec and water would be like. It is to cover 5 weeks. Could anyone help out with an accurate figure we should offer as don't want to offend them by giving too little but every penny counts for settling. Ta.