Well, if I were lucky enough to earn $100 without much effort, the first thing I'd think of doing isn't spending it immediately. As I'm a born investor or gambler, I always aim to maximize my earnings, so:

I'd take $50 to reinvest: Buy coins on spot or open an order on BetFury Futures.

$25 to bet on my favorite teams or play Dice or SpaceDice on BetFury Originals (because they are fun).

Of the remaining $25, well, I would spend it for nothing.