When creating lessons are you SMART with your time? Do you create all your Smart Notebook lesson from scratch?

Every unit I taught I would always curate all of my resources into a Smart Notebook file, this would prevent me from searching my computer for files and it kept me on pace... I have the tendency start a lesson about elapsed time and end up discussing the digestive system. The week before a lesson I would spend time after school creating a SmartNotebook file that would be my melting pot of CScope Lessons, SmartExchange slides, TpT, Castleberry Curriculum, Google images to help students see vocabulary, intervention materials, word problems, center activities, individually practice, helpful websites, tutorial videos (Educreations, YouTube, Khan Academy...) and whatever else I could find to help my students obtain content mastery. I would also include what materials were needed for each part of the lesson along with classroom management tools (timers, random name selectors, group creators...).   To help keep me organized I would usually color code the background of my slides, ex: all yellow is slides are for day 1 of the lesson, blue day 2....