Get good legal advice and keep your will up to date. This is the best way to make sure your wishes will be followed after you die.
If you die without a will, an administrator (usually a relative) will be appointed. Your assets will be sold and the money distributed according to a formula set by law.
Keep your will in a safe place, such as with your solicitor or trustee, in a fire-proof safe at home, at the probate office or at your bank. Provide copies of your will to those people you have nominated as your executors.