Hi everyone.
What if Cedric's family had accepted the Triwizard award money from Harry or Fudge had decided not to give the award money to Harry? Harry would never have been able to give Fred and George the investment and they might not have been able to start their joke shop. That would mean no Peruvian Instant Darkness Powder and possibly no successful Death Eater infiltration of Hogwarts in Book #6. That would also mean that Ron wouldn't have been accidentally poisoned in Book #6 and the intended victim of the poison might have died.
(I like looking for minor changes in the story line that lead to major changes in the way things turn out.)
What do you all think?