Planners. Everyone has their own personal style. Personally, I like to be able to see the entire month at once. I keep our appointments, my work meetings and family activities on a planner very similar to this one: http://amzn.to/2kgYE5B
(If you purchase the planner through the link above, I do receive a small portion of the proceeds. Thank you for supporting this site.)
The planner I have is actually a little different (I ordered it last summer and could not find it available for purchase anymore) but by the same company. I keep our lesson plans, menu plans and anything else I need to do in a separate notebook, which is a topic for another post.
For me, being employed and homeschooling means keeping track of all appointments and activities. My mind needs to see the entire week and month at once in order to make sure I am not overloading our schedule. I even write our weekly activities such as church and piano lessons on my planner. I much prefer a paper planner to one on my phone. You do not have to plan like me- but you do have to find what works for your family.
Let me encourage you to use some type of planner- a planner that works for you.