The above picture is of my magnifier headset. I pretty much use this everyday and would classify them as another tool that should be on everyone’s must have list.
When doing any fine detail work they are amazing and you really don’t even realize you are wearing them after awhile. A must is the LED light kit option for them as well.
I picked up mine from Stew-Mac, but I have seen them at many other places like Lee Valley and Busy Bee Tools. They sure beat trying to look through the ones that mount to your bench, these will move with you and allow you to rotate what you are working on freely without having to adjust anything. A must have for sure.