If you won the lottery of any amount
I personally would buy a small house in Japan and move there after which I would live simply and retire
And get a Japan citizenship
I don’t believe in buying expensive things it’s a waste of money and it would just cause you to go broke faster
So I would only spend on what I have to
Houses in Japan are pretty cheap but very nice
And start a international food restaurant in Japan
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Boring investments lol. Bump up my retirement/health savings, help my parents with the same, buy a place so I can stop renting, set aside money for childcare and education. If there’s a little left, donate it. If there’s a lot left, give myself a yearly ~3% raise then donate it.