I like to go the extra cautious step of "looking twice."
Whenever I am about to make a lane change or RTOR, or even leave a stop sign, I take a second look. It just takes a second more... but it means my decision is not based on that "quick glance" that can lead to folks being hidden behind pillars, or really being closer than I thought...
Try it, make a new safe habit today to always take a second look.