I was going to put in some tech tips from the 25 th anniversary issue of Shutterbug that had been submitted from readers until I looked them over. Using Styrofoam cups for light diffusers, diaper bags for camera bags, and blowing out the dust in your camera with drinking straws. Always carry more film than you will need. You won't be sorry.
Film is cheap.
Retaking a photo is not. Supposedly several exposures of x-rays will not hurt. Having to buy a lithium battery at a 7-11 can be a costly lesson. If you have a removable flash, test it before shooting to be sure the connection to your camera is secure. If you have a camera that requires you to set the shutter speed for flash, be sure you do.