No storyteller invents everything; to be honest, we steal stuff from one another all the time. Joseph Campbell figured it out in The Power of Myth and The Hero With a Thousand Faces, both of which are useful references for any writer. Humankind’s basic stories are always with us: sacrifice and bliss, love and death, adventure and gifts, war and peace. Scratch any good novel and you’ll find one or more seminal myths supporting the story, forming the framework for the characters and the action. And boy, every one of them is a page turner.
DEVELOP PLOT BY ACCIDENTAL DISCHARGE. If a husband is going to slip and reveal an extramarital affair, make him do it while bringing his wife to climax. If a kid is going to stumble upon a secret, make him do it while chasing his escaped pet lizard.