If you are planning on applying to several diff. colleges but they ALL request your "official transcript"?

I am planning on applying to like over 10 different colleges next year in the fall during my senior year, i wan't to see if anyone will accept me since my gpa is a 2.89 and i scored a 16 on the ACT . but all the colleges are aking for my official transcript if all these schools want the official transcript that came from my high school in the yellow envelope, then how am i suppose to apply to more than 1 college?!?!?