Summarize the following:
It's important that you tell your family about your decision before your death. If you do your research and make necessary preparations, your family won't be left trying to understand your wishes. If you don't inform your family, this surprise could delay them in getting your body to the right facility in time. Check with the program you're using about transportation costs. Most programs will pay to transport your body to the facility, but if you die far enough away from the facility, your family may be responsible for paying to get you there. Your family will not be able to hold a funeral with your body present and they should be prepared for this. It may affect their ability to find closure. Inform them that they can still hold a memorial service or attend a commemoration service at the facility where your body was donated. Generally, the facility will cover the cost of cremation once the body is no longer being used for study, and some facilities have a cemetery plot where they will bury the bodies if that is requested. But, if your next-of-kin want the remains to be given back to them, they may end up having to cover the costs of cremation or burial. While you may be a good candidate for body donation and you've correctly filled out the paperwork, your body may end up being rejected. If your body decomposed, suffered trauma, or experienced a major operation, you may not actually be accepted. Decide what you'd like done if body donation does not work out.  Again, make these wishes clear to your family, since they'll be fulfilling them after your death. It's always a good idea to put it into writing and notify your attorney. Remember that you may be able to donate your organs even if you couldn't donate your body. While the decision to harvest suitable organs will be made at the time of your death, you should fill out paperwork and inform your family in advance. This way, if your body isn't accepted, your organs may be.

Summary:
Inform your doctor and family members. Discuss funeral or memorial options. Make alternative arrangements.