Actually with that last task I listed I can think of four different "levels" one could approach it from, depending on how you wanted to go with it.

1- Simply keep the diary, and he's permitted to read it.
2- Keep the diary and read it aloud to him.
3- As I listed above.
4- As I listed above, but after you finish reading you have to act out one of the acts you read about before being permitted to cum.

So I suppose as far as tasks go this one is "season to personal taste".