Keeping ideas fresh?
What are some tricks that seem to work well for keeping ideas fresh? I mean take Science Fiction or Horror or even Westerns as an example. They each have standard props based on the genre. Science fiction has robots, space ships, etc Horror has ghosts and Vampires and other such and Westerns have cowboys, indians, rustlers, the open range and such things. Just wondering how others have found ways to keep their writing fresh while still within the boundaries of the genre's. I mean there are standard types of stories within each genre. Westerns would be things like a ranch being in danger of a hostile takeover by another rancher or the hero vs. the local gunfighter or something for example.