‘Good accounts make good friends’, as the saying goes. It's easy to deduce from this that the reverse can quickly lead you to fall out with your mates, your family, and so on. Fortunately, there are small software programs (free/libre, and which don't give a damn about the content of your data) to manage shared expenses. They're terribly simple and effective: all you have to do is enter all you have to do is enter everyone's expenses, say who is affected by the expense in question, and BAM! with one click, they'll tell you ‘Who owes how much to whom?’
