This game would have been five-hundred percent better if I could hold more than 3 different tools and it clearly communicated how to unlock more slots. I'm sitting on like 1000 Freeman bucks and I would spend them all on more slots or just if the game stopped limiting my inventory altogether. Jesus Christ...

Talk to one of the shopkeepers. They'll clue you into the black market shop (d-pad Up to call them). When you open that menu, go to the licences category. There you'll find a 300Freeman$ licence to open 1 inventory slot. I think it let me buy that 3 times before it said out of stock. It is muuuuch nicer having double the inventory slots.

You can also unlock additional inventory slots by leveling up in Strength, but that only unlocks a slot when you hit Strength 10, 20, etc.

I wish more people were enthused about the game. I am genuinely in love with it, play it more than anything else right now (and I was super hyped for the new Pac-Man CE, too).

Also remember that you don't actually have to carry everything. You can kick an extra item around, and you really only need to get them to the bus loading zone. So even with the starting loadout you can send 4 items plus one doll to the bus, and then go back for more.