If you're in the middle of a memory, it's always wise to take a picture. And, as with most things, there are plenty of environmental things to keep in mind when snapping pictures.
If you're not yet digital, choose a higher-exposure disposable camera or roll of film to get more images out of similar packaging.
If you've gone digital, don't print pics you don't want. (Duh, right?)
- Use rechargeable batteries (and unplug your camera when it's fully charged).
- Share your images online (or via CD) instead of printing them out, unless grandma needs a copy.