One of the things you have to do in the process of making a Will is to decide who will carry out the administration of your affairs after your death.
This person, the ‘executor’ is the fulcrum of the whole process so making a Will gets you to think about who would be most suitable for the position.
You’ll need to choose someone (or perhaps two people) who is sensible and level headed and who is happy to take on the responsibility.
Many people use professional executors and Smart Will can help you here.