If you still use an SLR (digital or film), here’s a way to lighten the load of your camera bag. The Universal Flash Filter Kit, available at Photojojo, is a set of 20 wrinkle-resisting plastic filters that fit on any external flash; they wrap over the flash and are held in place with the included elastic band. Fifteen of the filters add color to the scene. The remaining are color-correcting filters that compensate for ambient lighting; one acts as a diffuser. The set stores in the included carrying case, where the filters are organized by red/yellow, green/blue, and color-correcting for easy selection. Photojojo says the filters can also be used as a lens filter, even with smartphones. The Universal Flash Filter Kit is $30 at Photojojo.