At Base, we like to save time and work smart, which is why we suggest creating a digest with the outline of what I send each day / week, and named it TEMPLATE. Then, when I'm ready to use it, I can search for that digest, duplicate it, and not have to start from scratch!
Pro Tip: All new workspaces comes with a variety of Digest templates, including Daily Roll-Up, Inbox Roll-Up, Weekly Recap, Meeting Summary and Travel Itinerary. Edit the sections to make them yours, and you have custom templates!