In 1984, I briefly glanced at the partial solar eclipse as it passed through Minnesota. It wasn't for more than a few seconds, and it is still there. Whenever I close my eyes, there is a partial eclipse that is a permanently scarred after-image for my reference.
Today, the image is slightly less vivid than in 1984, and I seldom notice it unless deliberately checking. It is identical to the eclipse that I saw 33 years ago. So, while everyone else in the path of the eclipse is watching with what I hope will be protective glasses, I will be watching a wine glass which will begin full and then go to partial, then full again. If I'm tempted to look at the eclipse, all I'll have to do is close my eyes.
Don't be tempted to take a quick look if you don't have protective glasses. It will be an image you will never forget, no matter how hard you try.