How does the mother of the groom handle the mother of the bride tactfully, when she keeps adding things to the wedding but she is not paying for it? In this case, the groom's parents agreed to pick up 50% of the cost. But more was added and put on our tab so we are now picking up 75% of the cost. I don't want to cause any problems and I don't want any arguing but I am at my limit financially. Any suggestions??