my macbook i got really only has 40gb of free space since osx uses up 15.6 of the 55.6 hd space. i really don't use any of the applications that came with my macbook and want to free up more space. only one i find useful is the dictionary for college. also if i delete an application i just move the icon to the trash can and it deletes everything right? or are there things in the library folder i have to delete also?