Awful bands aside, max credit cards, break a whole load of shit, blow things up, fuck 100x prostitutes. All fun things, and then start the risky. Rob a bank, rob jewelry store, etc. Whatever works, give cash in secret to famry and friend. Whenever caught, OD and go out on the best trip NA.
I'd probably gather a bunch of my family and friends at a nice place where we can all talk peacefully and reminisce. I'd have some gourmet food and drink before I roll up a doob, light it up and check on out.
I would spend all my money doing what i loved the most, which is being lazy. So i'd probably just spend all my money on food, and stay in front of the tv.