read something fun, i.e. John Grisham
I read these random Torts and Contracts outline packets before I started in the Fall. If it helped at all, the packets only gave me a rough overview of the "big picture," at least for Torts. Contracts packet wasn't much help.
Anyway, my torts and contracts grades were very good this past semester, but not because of the packets.
If you want to do something, maybe try to read up a little on what courses you'll be taking to try to get someone of a scope of the "big picture," before entering the classes. (i.e. go to wikipedia and read what a Tort is, or the fundamentals of a formation of a contract, etc). Don't kill youself trying to learn anything...casually read up on it if you're interested, but don't go out and start buying law school prep books (only suckers buy those).
Mostly all 1L's in first semester struggle with getting the "big picture" of certain courses in the first few weeks (especially contracts or civ pro) - if you go into school already w/ somewhat of an idea, then it sure wouldn't hurt.
Good luck w/ all that.