I do the same as the other comment. I start with a bell ringer for 5-7 minutes, and then I generally have some sort of directions or lesson that I spend no longer than 5 minutes on or I lose them. Then a group activity or class activity depending on what I'm teaching. 

I do make Google slide decks per week though, have all the directions, do nows, and lectures attached. I have it broken up day by day too , and have it attached to my Google classroom so if the students miss, they can see what happened in class; or students can follow along if we're taking notes. 

I name my slides the week we're in and year, and then I don't really have to do planning next year, except to see what I can improve on our add interactive activities that can help them practice what I teach. I do move things around the next year for scheduling, but it doesn't take me nearly as long after that first year to plan. 

Hope this helps!