Make a backup copy of your images onto a separate drive or storage media from time to time. Especially backup images that are on your camera. A local photography shop can provide a "backup to CD" service when you are traveling or you can email important images to yourself.
Use a tripod or other support to support your camera but this will also slow you down to allow you to concentrate on your subject and see it differently.
Take photographs at dawn and dusk – when the interesting lighting and subject may provide the best opportunities especially for the nature photographer.
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