Alright i have vista, and i just freed up 14 Gigs of space (268 - 282) the max space is 368, i want more space

How would i do this i went through my computer, and i deleted everything i will never use again, unninstalled it, and i am not a computer illiterate person, i do know a LOT about computers. (BTW I LOVE VISTA I CARE ABOUT WHAT NO ONE SAYS ABOUT IT MEAN)