As far as I know, grants, work study, etc are usually determined based on your FAFSA...I heard that the sooner you submit it, the better your chances are for getting a grant. I am not sure how true this is, but I heard it in a post somewhere on here. (Can anyone confirm this?)
As for scholarships, I would check out the website of the school your attending. At my school, there is a nice list of about 12 scholarships that I can apply for. These scholarships are for PT students only too. Maybe even contact your academic advisor at the school you will be attending as well. Hope this helps!