When I import into lightroom i'm importing from my HD but then I am saving into a folder again through LR, doesn't this make two files of the same image?
LR never changes the original files.
LR saves your edit commands in the catalog (database).
To show you the edits, the edit commands are played back against a copy of the original file.
To see the edits outside of LR, you need to export the edits into a new JPG or TIF file.