chefdc1 wrote:
Speaking of rearview, does anyone use those magnified things on the back window, to see behind, or are they pretty useless.
If you have a line of sight to the rear window, and you don't have a rear view camera, I wholeheartedly recommend the stick-on lens. I have one and find it quite useful during the day. At night it doesn't work as well, due to the lights tending to smear (for lack of a better word) and due to the lack of context for where things are located.
By the way, they are not magnifier lenses, but reducer lenses (i.e. with a negative focal length). You see a wider angle, but stuff appears smaller. This also means it won't concentrate sunlight coming in and cause a fire or fry bugs, as a magnifier can do.