fix up my car. no one will want it but my parents can trade it in so my sister can have something to drive before she's out of college.
mail will to appropriate parties
drive out to the middle of nowhere (bring: booze, drugs, shotgun, another copy of will just in case)
get out of the car so it's not a mess, leave the keys in an envelope taped to the windshield.
hike as far as i can get
bang, done.
i don't want anyone to have to deal with anything. especially not my parents & sister. i'd do it in summer so the animals would get me and whoever would maybe find the body would just see clean bones and not a fucking horror show.