Hello,

I am wondering what the best way to implement a multi-user app would
be.  I would like The user to choose whether a document is private or
shared.  And with whom it is shared.

For example a todo list.

I would like some items to be private.
  Get test results from free clinic.
I would like to be able to share another item with my girl friend.
  Meet at hotel no tell at 8:00
As well as items with my wife and kids
  Grocery List:
          eggs
          milk
          ice cream 

etc...

Can this be accomplished in one database, or does each "list" require a
database.

Thank you.

Regards,
Brian