It really surprises me when I meet new people in the industry and they don't know what a template is or does. As a designer I use templates to shorten my drawing time and I couldn't live without them. Here's is a quick breakdown on what templates do.
This path is usually in a hidden folder directory so you will need to turn on hidden folders to find it.
After building the main template with layers, layouts, and dimstyles, save it as .dwt and you will have everything loaded everytime.