Somewhat off topic, but most colleges also have a back door if you arent' accepted. You just take classes as a non-admitted student. If you can demonstrate you can cut it for a quarter or semester, you can usually then be admitted.
A good friend of mine was upset because she was turned down for admittance to the University of Chicago. I told her about that plan and she now has an economics MBA from th University of Chicago, a pretty valuable degree to have.
One caveat, that was 10 years ago, not sure if that method would still work.