I've added some other things that I think are important.  :)  It's a general list,
somethings may not apply to you and your circumstances.

*Create a First day tradition!  A friend takes her kids out to IHOP just to enjoy their company and to do something very different.  Another friend takes a picture in front of the house with the children and their pets with a sign of the year and their school name. 

* A place for everything and everything in its place.  Store at the point of use.  Find a place for pencils, books, etc.  Example:  We have a shelf that holds, tape, pencils, etc. My 4th grader and Pre-K's books are on a shelf in a dish pan near the table we work on.  My 7th graders table books are on the shelf near the table, but her reading books are on the shelf in her room where she reads.    Our Shiller Math (math manipulative heavy curriculum) is near the floor on shelves in the armoir in the room we do math in.  

*Starting a few subjects for the first few weeks helps ease back into
the year.  Just add them in as the weeks come.  Example:  Week 1: Math
and handwriting.  Week 2: Math, handwriting, and reading.  Week 3:
Math, handwriting, reading, history and science.  etc.

*Write down the reasons you are homeschooling.  This is nice to have
when the days are long.

*Emotionality.  This summer I've learned not to get upset with the
situation and its much easier to discipline appropriately.

*Your calendar is your friend.  Embrace the calendar.  I add taking
the trash out to the calendar so we don't forget.  Schedule grocery
shopping, cleaning the car out, etc.

*Having a set of rules posted helps many kids coming from public
school know that their parents have behavior standards as well.

*Remember patience isn't something you just have, its something most
of us have to learn.  I have often chanted "I am learning patience".  Sometimes quietly to myself and sometimes out loud so my children can see Mom working on her patience. 

*Get to bed early when you can.

*Remember you aren't superman.  You can't solve other peoples problems.

*Are your eyes bigger then our stomach?  Let a friend look over your
schedule and activities set for the year.  Is it realistic? Will it
bring blessings to your home and your family?  Will things like
nutrition and peace be replaced because of a certain activity?

*There will always be gaps in every child's education, get over it.  :)

*Kids need chores.  Everyday.  You can not do it all and they need to
know how.  An incorrectly folded towel, has never been known to kill
anyone.  If you have control issues you may be damaging your children's
view of themselves.  Let it go, ask them to fold the towels, teach
them how in love and patience.  And when you go to close the cabinet
door with incorrectly folded towels bulging out, push them back in
tight and as the door seals, thank God for your healthy children who
are trying their best to bless their mom.

*The greatest benefit I see in homeschooling is that children are
growing in a home and can benefit greatly from their parents growth.
When I learn more about, for example, how to embrace fruits of the
spirit I can share it with my children.  Don't forget to share your
victories with your children no matter how small.

*List your priorities for the year.  Include growth you want to
influence your children in.  Mine looks something like this:  School,
chores done, peace, child A needs to learn more about pride, and
scheduling. child b:self control and patience, child c:discipline is
part of life, tell dh how much I love him everyday, do things that
support him, knitting, growth as a person, having healthy friendships,
personal reading time, doula work, helping others in need when I can.
If an opportunity comes up and it does not fulfill growing my children
or myself or supporting my husband I'm not doing it.   Charity starts
at home.  Everything that is good is not profitable.  (is that the
quote?)

Of course keeping your commitments under control allows you to be able to bless others.  When a friend needs to be blessed by a favor its a joy and not impossible or a terrible inconvenience to your family. 

This weekend as I was driving to a birth (doula work) I thought this
is not blessing my family should I be doing this?  But afterwards I
realized it was blessing me.  Its a bit of an indulgence for me to
help others have a natural birth.  It teaches my children my values
about birth and caring for others.  It gives my husband a chance to
see how much fun it is to juggle 4 kids.  Ive gotten jealous when the
kids are so happy to see Patrick when he gets home from work.  So when
Kate screamed "MOMMA YOUR HOME!" with a squeal as she jumped in my
arms, I knew it was good.

*You do need breaks from your kids.  Don't feel guilty when you are
apart from them.  Schedule breaks before you need them.

*Homeschooling is not just about academics. When discipline and
relationship come first, academics is easier.

*Learn to say no to your children as well as your pastor without guilt.

*Baby yourself.  Set weekly and monthly indulgences (not food).
Getting to go out for a coffee with a girlfriend, getting to knit (or any hobby you enjoy),
window shopping at the mall, candle shopping, etc.  Get a sitter and
go out with your spouse.  Life is supposed to be joyous.

*Have daily indulgences.  A special coffee or cup of tea in the afternoon comes to mind as well as a few conversations to a friend about the latest going ons.  Sit down and relax.  Rest gives us time to reevaluate and dream.  A gift many in our society do not afford themselves with. 

*Schedule fun with your kids!  

*Schedule exercise as a family!  Once a week we try to get Daddy to take us hiking.  It's a cheap sport. 

*Teach your children how important your marriage is and that being
good to your spouse and keeping your spouse happy is a priority in your life.