Money

If you want alot of money without doing much work you want to put money in the bank and time travel. Warning: When you do time travel you get interest monthly, but you will also be adding numerous weeds to your town. Neighbors may move away too, make sure you have enough money in the bank to make a difference, and make sure you really want to do this.

Do what he said ^, except you have to chane the time on your wii, not with Rover.Set the date to January 1, 2000, play for a minute and save, set the date to December 31, 2035, play for a minute and save, and set the date to the real date. You should have exactly 99,999 more bells every time you do this.
Hope it helps!

Sometimes coconuts will wash up on the shore of you beach. Instead of going to tom nook and selling it right away plant it. Eventually it will grow into a palm tree and grow more coconuts. Shake the tree and as the grow keep planting more. Eventually you will have as many coconut trees as you want. Shake the trees when they are fully grown and sell them to tom nook. The can sell up for 1000 bells per 2 coconuts. It's alot and it doesnt take much work.