I've always hoped that I would die this way. Some sort of terminal illness so that I would know in advance that it was coming so I could plan accordingly.
I would make a video for my daughter telling her all the things girls/young women need to hear from their mothers.
Most of the "loose ends" are already taken care of b/c my father died very young and you never know. There's typically a "waiting period" for life insurance but I would put all of the debt in my name and fly to Vegas for a quickie divorce. I don't have any benefits that he would need to be a widower to access and my will is very specific.
Then I would throw a funeral. They're too stuffy and anyone who knows me well would be offended if some religious figure wanted to talk about me after I died. Instead I would have a big party with lots of booze and fatty foods. Pudding wrestling. Dunk tanks. Live band. Then my friends would be forced to eulogize me while I heckled them from the audience.
Finally, I would hand off my journals/computer files/misc notes to a small group of friends to finally finish that novel I've been writing about my life. Then give them the information for my daughter's trust. Call a few old acquaintances who owe me a favor and tell them to keep a distant eye on the kiddo. Say goodbye to my family. Walk my happy ass down to the morgue and harass the poor sap who'll have to dissect me (hello! a disease that mysteriously kills you at midnight is going to need an autopsy before any insurance pay outs). Then crawl up on the weird metal table and voluntarily separate my consciousness from my body (meditate).