I half-agree with this. I don't need to work from a script, but if you want to do really high-quality work with students your plans need to be laid out pretty carefully. Students should be able to produce professional-level work in high school, in their area of highest interest and ability. We need to do some pretty well thought-out planning to help students work at that level. Once the planning is done, I work from bullet points. But at some point, for consistently high-quality curriculum, we need more than bullet points.

What takes the most time when you're teaching is grading.

I disagree with this. Certainly many teachers spend a lot of time grading. But with good use of peer feedback and modeling, grading does not need to dominate a teacher's time.

Also time-consuming: documenting discipline issues and parent contact.

Yes, although education is a holistic profession. The better we plan and deliver meaningful learning experiences, the fewer discipline issues we have.

I've noticed in Staples that they have paper templates for those but I'm wondering if anyone actually uses them at all.