If you have strong preferences regarding burial or cremation, it’s a good idea to put these in writing in your will or in your health care power of attorney. You may have expressed your wishes verbally to your loved ones, but people can become uncertain in a time of crisis, and family members might have differing views. If there is ever a dispute, having a written direction will be vital evidence of your intent. 

Also, if you have specific instructions regarding cemetery plots, funeral homes, etc., putting these in writing can be a big help to your loved ones as they try to sort through matters quickly in a difficult time.