First,I would de-clutter your house now so you don't have to much to clean or arrange every time you get a call.
Also, because if you are going to de-clutter, give away & organize when
you move anyway, there is no time like the present.
This will help assist you in your "clean up" when you need to show the
house.
I'm sorry you're going through this because selling a home is a difficult
task. I hated having to keep the house in pristine condition w/kids,
animals & just plain me in general. :)
Find an area to designate & organize as your home office area for your
husband.
Designate an area (if you can) to where you will teach your kids when you
home school them & where they can study.
Next, organize these areas neatly w/desk-top bins, file folders, magazine
holders, pencil cups etc. Look around at your local Office Max type of
store for organizational tools (shelves for the top of desk etc.).
Get rid of things now that you do not want. Donate. Sell. Less to clean up.
Good luck & hang in there!