Your will can include various instructions to ensure your final wishes are fulfilled. As a minimum, it should include instructions on who should inherit your assets, such as your money and property, upon your death.
In addition, you may include other elements including your funeral wishes.
If you have children under 18, you may wish to include instructions on who should become their guardian should the other parent already have died, or in case you were to both die at the same time. You can also include details of trusts so that you can provide financially for your children and wider family when you are gone.
On top of this, you can also leave instructions for charitable donations, what should happen to any pets, and even who should take over your social media accounts!