My vote is to go back to the first basic system that we had, with the exception of being able to pick our own daily cleans. I think the same person should choose the weekly challenge and the 5 minute challenges though because then they could coordinate? Or we could have different people choose each. I think a monthly reward would be fun but not necessary, I could offer a bracelet for the first month. I also think a yearly or bi-yearly reward would be fun too, that way we still want to get the most points possible even if we won't win that month.
Anyway....what do you think?