#1.Change clock to 1-1-2000
#2.Put around 50,000 bells in your account.
#3.Save, go back to your file.
#4.Change year to 2011. Save.
#5.Keep going forward 11 years and saving.
#6.When clock hits 2099, save, then go back to 2000.
#7.Repeat steps 3-6.
Your town will suffer, but town hall will keep giving you money.