Absolutely brilliant art and the concept is really cool! Definitely could be expanded after the jam to add more stuff for the end!
Viewing post in The wandering wombat jam comments
Maybe some items acould be worth more than others, especially further on when you've upgraded the carelessness so much that you can't pick up all the items it could be good tostrategise which ones to focus on. If you wanted to make it a more idle-like game you could buy employees that go collect items or bring customers over to your wagon. Or if you wanted more challenge maybe thieves try to steal from your wagon and you have to click to scare them away.