The charts were duly pasted on the cupboard doors and various sizes, colours and designs of stars and other stickers were bought and kept in a safe place.
The first couple of days we gave stars with great aplomb and restriction. We were very strict on whether they merit the star or not.
Then, one day, fed up of this rationing, while everyone was fast asleep, the kids procured the star sheets for themselves and solved the problem in one go, even accounting for beyond category stars.
Take a look...