Animal Crossing New Leaf megathread: The economy of Bells, Fruit and Turnips.

I'm surprised no one has said anything about falling leaves.
If you shake trees in your town (and probably others if you want to steal theirs?) you can get one or a few furniture items. They drop down from the tree like leaves. Pretty sure this resets daily just like the money rock.
In the process, you'll probably run into a few beehives. Be sure to run straight in one direction and then make a turn when they're kinda close, get your net out, face them, and catch! ..Or you could run into a house.
100 bells also drop pretty frequently from trees if you're into change.

From what I was reading online, every daily reset includes 2 furniture items in trees, as well as up to 5 beehives/bees. Bees are worth 2,500 a pop, but are a little hard to catch. People make fun of you if you fail and talk to them (they make fun of your face), they're rather rude about it.

So far my experiences have supported the above numbers, though. I always get 2 furniture items and 5 beehives a day.