Does sound like plenty of work for a House Cleaner. Is she there everyday?
However, if she's a Housekeeper and not just a cleaner, you can probably ask her to do more..like organizing and decluttering. I think housekeepers clean and help keep the house organize. If she's just a Cleaner, then she can only just clean. It's not their job to declutter.
If yours is a housekeeper and is there everyday, there isn't that much dusting required all the time 'cause it doesn't get so dusty after just one day. So you can have her do other things by helping to keep your home organize too. But you have to set up your home to make it possible for her to keep it organize. It's not up to her to plan and decide where everything goes...
Some homes have so much paper clutter and toys that people don't ever know what to do, but don't seem to get rid of. It's not a Cleaner's job to organize, for example, a cluttered desk because where would she know to put them, and what if she moved them somewhere you can't find (she can only wipe it down wherever she can see - around the clutter)?
And it's not a Housekeeper's job to figure out how to organize your home. But if you already have a clear plan, and everything in your home has a place (toys have a place, books, unopened mail, clothes, dirty and clean.. then it's fair to walk her through it and tell her that she can help to put things back where they belong if she finds them out of place. i think Housekeepers can also do laundry, fold and put away laundry and make the beds.
you can also alternate chores for every other days, she can't possibly dust the same thing day after day, it takes 2 days to see dust start accumulate. But it takes only one day to get a kitchen messy. :) so decide on how you can plan out her week.