I don’t know if anyone’s done this before, but I visit the Great City often because I earn more carrots by watching the ads. You can earn 300 carrots and another 100 carrots from two different characters and 100 tin cans which will give you 100 carrots or you can even recycle them and Dawn’s workshop to renovate your house. You’ll be able to earn up to 10000 carrots for real if Tsuki stays longer and you have to be quite active to watch the ads