I definitely agree that writing for a website like The Odyssey and working for a school publication are great. You could also start a blog, which will showcase your writing abilities and multimedia skills. Who knows, it could always take off, and having a popular blog would be a great reference. Another option is getting involved with a writing or editing club. If there isn't a writing club on campus, see if you can start one. You can always make it a writing and editing club, bringing a larger group of students together for similar purposes. See if your local library offers any clubs like that as well. Book clubs are definitely a good idea, as you'll have to spend a great deal of your time reading. You can even practice editing and critiquing already published books. Another option is to become a guinea pig for up and coming authors by signing up to be a reviewer. This would be excellent practice, and you generally get the books for free, and you might even get paid.