Option the second, friends. I go so far as to guarantee this in a rich Louisiana accent.
What I bring forth is a list I've had in the back of my head for a number of years. It's simply things I would do if I suddenly had enough money to comfortably lose my mind. If you were going to become this rich, why bother planning for it? Plan the little things to keep yourself from growing stale and dull. You must stay entertained, and eventually, buying everything on earth will lose its appeal. A Tauntaun sleeping bag, which was once a conquest, is now but a trifle in which your pet Zebra (pronounced with a short "e" sound) can shit.
1. Make yourself feel important and recognized.

2. Set yourself apart from other rich maniacs
A lot of rich people give money away for nothing, because hey, you're rich, it's expected of you. But you're mentally rich, and you deserve some entertainment, as well as some individuality when it comes to your charities. First off, don't give to the needy, give to the average. Nobody gives the average anything, and I'm fucking sick of it. Nobody walking down the street gets free handouts, it all goes to people far too sickly or unfortunate or burned to use it. I propose you give a hundred dollar bill to every tenth person you pass. You can't do this in a crowded city, mind you. You'll likely get mugged, and it's too hard to keep count. Do it somewhere with some vague street life. Anyways, here's the fun part. Throw a peanut in the face of whomever you plan to give money to. Do this immediately before handing them the bill. So they don't even have enough time to think about it or get mad. Peanut, bill, then prance away singing some sort of foppish reel. No time for explanations, and it will be the best and strangest moment of that person's life. It's even better if they have a peanut allergy. In that case, the fun comes in wrapping the bill around the peanut. Deadly surprise! Never trust a billionaire!
3. Tell people you're a billionaire.
Billionaires are always pathetically modest about their money. Sure they live in giant houses and fly helicopters made out of dragons and breasts, but they never just tell people about their financial situation. They're behind-the-scenes gloaters, and that's just boring. Tell EVERYBODY you meet that you're a billionaire. To substantiate this, keep some stupid amount of money on your person at all times. Dress in average clothing, nothing ritzy or Victorian. Nobody will believe you. They'll all laugh and be a little uncomfortable. If they ask for some money, give them some. The amount is up to you. If they mug you? Congratulations, you've found somebody smart with whom you can be friends! Invite them over for Flan.
4. Ruin pictures at theme parks
Everybody loves theme parks, right? Why would you? You can afford a better one for your bidet. So why not let the world know? Show them how you gain no pleasure or excitement from their pedestrian antics. Could you imagine the average family buying a photo of themselves going down some radical huge wicked hill tubular awesome, just to see some asshole frowning, rolling his eyes, or yawning with great exaggeration? They would feel so stupid!

Also, this is a good way to get you some cheap fame among the lowlanders. They paid their 18.99 for that photo, it's going on the mantle, god damn it! You'll be the conversation piece of every townhouse complex in suburbia. Which you own. Because you're rich.
This list is an ever-evolving thing, much like the flu, cafeteria food, or intolerance; so I'm sure there will be future entries following the same theme. Until then though, enjoy work, you barrel of working class bastards.