I steal phrases from the masters and rework them with my thesaurus. Its all about turning a phrase to make it fresh and subing words in phrases can lead you into something new and stimulate a different perspective.

"Before its all been done, or does it just seem so?"
" It all seems done before. But that just can't be so."

You can stumble on some great hooks this way. Just open your mind and play some word games. ;)