If you're anything like me (a 20-something female), you very may well have read the Sweet Valley Twins/High books, by Francine Pascal.
If not, you should still follow this link.
Here's a teaser:
" It was as if billions of possibilities all fell together perfectly. Twice.”
If you think that's good, you should read the rest of the teaser.
Trust me, if you're feeling bad about your own writing, this will cheer you. Considerably.
pardon me while I get my pre-order on...