How to get money on Animal Crossing: Lets go to the City????

Sell your fruit, things from booker when あなた say you've ロスト something, plants IF あなた ARE DESPERATE, shells, あなた can also dig up fossils - and when he tells あなた what it is DONT GIVE IT TO HIM, sell it to tom nook. あなた might even find money in trees!and if あなた find items in trees あなた can sell them. hope this helps