each of the days you teach. I work on a 6 day cycle so I have one sheet double sided for each day with the things that I need and space to add things when I'm planning. These also can be changed over time throughout the school year. I save one blank master for each day of the 6 day cycle and then I can save it by date if I need to have it on the computer. I usually just print them out and make a few copies at a time as I need them. I usually also just add in pen/pencil and date them and hole punch them to use in a binder instead of a traditional plan book. I can go in and update my master any time I need.
I have one our Kindergarten teachers use but it is in Excel and I can't post it. If you are interested please send me your email and I will forward. It is setup so you type into it then print out and it fits right into a standard lesson plan book.