Animal Crossing: City Folk Tips

Quick Money Tips
Fruit Reproduction:
You can make a lot of money by foreign fruit reproduction! Get a fruit from your friend's town that is not the same as yours. Plant it, and for every day for 15 days, plant all of the fruits which multiply off it. By the end, you should have over 150 of those fruit trees in your town! That's about 450 pieces of your foreign fruit! Each piece is worth 500 bells, so you can make A LOT of bells (250,000+) every few days!

Fishing Trick
In the summers, if you fish near the beach, you have a good chance of catching rare expensive fish like the Barred Knife Jaw, which can give you more than 4000 bells!