Since taking this extremely helpful course, I've become much more aware of my driving and that of others. I check my side mirrors more frequently due to naturally declining peripheral vision. I limit my driving, and don't drive at all if my body doesn't have enough energy to drive safely. The course covers a lot of useful advice not found in the CA drivers' handbook. To me, it was worth taking even if I hadn't gotten an insurance discount (which, by the way, varies from company to company). The certificate was mailed to me the same day I completed the course. Thank you, TSI!