My Nikon flash has a convenient integral bounce card, but only for horizontal shots. I fashioned a vertical reflector form a scrap piece of diffusion plastic used in a fluorescent light fixture. It attaches to the flash with Velcro. Now, a ceiling bounce lights my subjects, while the reflection off my subjects, while the reflection off my little card puts a spark in their eyes.
—Reader Tip from Lewis H. Weber Sarasota, FL