I had to keep some things over the years — here’s a few…
• Use the LEFT and RIGHT arrow keys to quickly move through photos in the slideshow.
• View the full high-res version of any photo using the View Full Size link in the lower right near the photo's info. (You may need to scroll down)
• Exit by pressing ESC or clicking the 'X' in the upper left corner, or by clicking anywhere outside of a photo.