Please keep copies of any documents in your classes that you might want to save. It takes a lot of time for you (or me) to go back through all of your classes and save the substantive discussion postings and papers. You will have access to your classes as long as you have your VLS credentials. However, our IT department closes accounts a few months after graduation. It is so much easier to save as you go along.
You never know when you can use these documents for a writing sample in a job application or for a PhD program. Two employers who provide tuition reimbursements ask for samples of work product - just because they are interested in what their employee is studying.