Along with keeping a yearly plan for homeschooling it is also important to keep a daily schedule of what you are doing in your homeschool. This can be broken down by subject matter, by the hour, or by the day. The important part is that you keep a good record of what you are doing. Think of it as a journal for homeschooling.
If you have older kids (4th grade and up) make them write their own daily schedule. We take time every Sunday evening sit together as a family and plan out the week. Who is doing what on what days, what chores are happening, what other classes, field trips, or appointments are happening they write all these things down. You are not doing your kids a favor by writing their daily schedule for them when they are old enough to do it themselves. We want to equip and teach our children to keep a schedule and a to do list for themselves. This is a great life skill you are giving them - so don't sell them short by writing out the plan for them.
Facebook is also a great way to keep track of your homeschool journey. Many a mom I know will post homeschooling day #87 take a few photos and list what they did on that day. This is another great option you can do in addition to a paper or computer daily plan!
Here is a very simple Daily Schedule you could use
Here is a Weekly Lesson Plan you could use too
There are plenty of free online versions you can find as well!