I agree with Justin Slocum Bailey that something great can come from nothing. most teachers fall into the habit of planning waaaay too much. Even if all that planning is enjoyable, somehow, it often results in insignificant gains in student happiness and/or proficiency. In the spirit of “no fail no burnout,” then, plan whatever you have to in order to sleep well at night, but begin class ready for any compelling diversion to take you away from those plans! Sometimes a sentence is all you need, and depending on the content, a single word (e.g. One Word Image, or One Word Drawing).