What do you guys do for fun when you've 99% completed the game? I won't say 100% cause there's no true ending to the game since it's open world.
What he said^^^^all of the badges.
all of them.
Once I have all the badges, a completed catalogue and maxed bank on all four characters I'll probably just dither about on Club Tortimer or try to improve the town's look.
...
Or just have a 4 billion Bell giveaway to try and earn it all again before realising how many hours it would take to trade that much.