Death Death - the great leveller G.S.Munro. Recently an FM radio station posed that question on a talkback show.
People rang up with all sorts of ideas.
One said he'd buy a Kombi and travel round Australia. Another more up market person said they'd buy a Ferrari and travel round Europe. How you answer this question will reveal something about your character. If it is personal pleasure, you might take world trips and buy expensive cars, since the money no longer has to last a long lifetime. If it's sexual pleasure, you might buy the most expensive prostitutes, or go to bed with anyone you can.