Find a way to guarantee that in ten thousand years your fossilized bones will be prodded at by lab-coat-wearing beings who are taller and have better teeth and prehensile tails.
There are all kinds of burial plans available to people. You can be buried in a plot, mummified in a mausoleum or cremated and shot into space. You can illicitly transforms your skull into a bong. There's even a service that places and maintains a webcam in the coffin and gives family and friends a website they can go to to watch things, ah, progress.