Lunch needs to be quick and easy, so I don't have to be starting in the kitchen at 9 or 10.....too many hours away from kids.
When I'm doing my animal care, I expect DD 17 to be doing inside chores. Possibly DD 9 also, but otherwise they are expected to start some of their lessons that don't require my presence. For example. DD 9 is on her 6th week and has 3 more weeks on spelling. I keep track of what words she missed and after a few weeks she has to re-test on her missed words, so that when 9 weeks come, she is more likely to pass the unit test....well she has shown me that she still needs to study her missed words, so I have a loose leaf paper all ready for her to write the missed words on, which I expect her to have completed before I come home from work at noon.
If I can keep them busy, on their own, doing what they are able to do while I tend to some grown up stuff, then I can sit down with them and guide them thru what they really have to have me for.
Once I am sitting down with them and we are on a good roll, we can do lots of lessons in no time. Its at those moments that I know I'm teaching more than the public school teachers are able to do with their classes, but its to get a chance to do that. You really need to have a good 2 hours to devote to your child. To pull it off, you might need to get your kids to help with more chores, so you can finish sooner. Thats part of homeschooling too because it teaches them responsibility.
The earlier you get started the better. I have to keep time in mind because once I start hearing those afternoon school buses coming, I know the public school invasion is about to occur. Sometimes I give in and let my kids play and sometimes I let the extra kids come in, provided they let me finish the lesson I'm on. Sometimes I decide its time for Religion class because those kids can't get that at school and even if they go to religion class at church, it won't be as good a lesson as the homeschool program offers. My biggest hinderance has been the neighborhood kids and family that doesn't understand how limited my time is.....If I'm supposed to be teaching and its 10:30am, I need to teach; not talk on the phone. Also, makes me crazy when relatives think my 17 year old can run all over the bayou with them.....Hello, go get your other teenage relatives out of their school to go shopping.