You can choose who carries out your wishes (your Executors). You can set out whom you wish to benefit from your estate and in what proportions. A Will can allow you to set up a fund to benefit people long after you have passed away (a trust). You can benefit charities if you want. A Will provides certainty as to what is to happen to you and can give guidance to your views on organ donation. This can be of much help to relatives at a difficult time.