SPMUG 643 Instant Slide Shows Wherever You Are

This is a good one! If you open a
window that has many photo files and you want to see a quick slide show
of those photos, just press Command/A to select all the photos,
Control/click on any photo, then from the contextual menu that appears,
choose "Slideshow." A full-screen slideshow of those photos (complete
with a nice smooth dissolve transition) will appear on-screen. If you
want to see only some of the photos in a slide show, Command/click on
the photos you want in your slide show before Control/clicking on one
and choosing slideshow. To quit the slideshow in progress, just press
the escape key on your keyboard. (QuadStar eNewsletter via Apple Barrel)