Paying off bills whether it be lump sum now, or in payments is a given. Charity, unless you receive something in return, and even then is sketchy. You never truly know where your moneys going, and it's a pain to try and find out with any certainty.
So I might give a dollar here or there, if I know the source. Obviously if I were asked and involved first hand, I'd be more likely to consider giving more.
Anyway, with that much money, you could set up a business so that's what I'd do. That way, I'd have another renewable income on top of the job I already have.
Oh, and me upgrading, selling old stuff, and buying items I've wanted or never knew I wanted is also a given.