I would donate all of it to various charities, food banks, housing for the homeless, etc. I am not a wealthy man, but I have everything I need. And everything we have, my wife and I worked for, nothing was given to us. Oh hell, who am I fooling, I would be in a spending nirvana.
Donate it to my favorite charity.
I would love to give significant gifts to my favorite charities
I would love to do something wonderful for my alma mater
I would pay off my daughter's college debts
I would pay off my mortgage
I would utterly spoil myself when it came to clothes