I want all of my worldly goods piled upon a Viking longship and it pushed, afire, out to sea with my wife atop the load mourning for me.

For some reason or other my wife is opposed to this.

So we've opted for "use what's needed and burn the rest." (Peace, that's often what happens at medical schools although I understand that you can specify that the remains be returned to the family for burial. Your "cremains" will be given to the family unless you specify something else.)

BTW, the book "Stiff" is a good read about things like this.