I cleaned out as much as I could from the /usr partition. I deleted everything in the share/doc directory but I am left with the following. I'm uncomfortable with next steps as it appears that I might have to make changes to each partition size and this type of decision as to where and how is not my forte. Perhaps someone can give me insight as what would be advisable and the best way to accomplish this.
Device Mount Point Usage
/dev/sda2 /usr 96% (9,217,752 of 10,078,768)
/dev/sda3 /var 52% (5,017,196 of 10,078,768)
/dev/sda5 / 38% (1,839,288 of 5,039,456)
/dev/sda6 /tmp 4% (167,624 of 4,031,552)
/dev/sda1 /boot 29% (135,770 of 495,781)
/dev/sda8 /home 46% (10,389,980 of 23,922,268)
/dev/sdc1 /backup 2% (6,976,916 of 480,719,056)
Device Mount Point Usage
/dev/sda2 /usr 96% (9,217,752 of 10,078,768)
/dev/sda3 /var 52% (5,017,196 of 10,078,768)
/dev/sda5 / 38% (1,839,288 of 5,039,456)
/dev/sda6 /tmp 4% (167,624 of 4,031,552)
/dev/sda1 /boot 29% (135,770 of 495,781)
/dev/sda8 /home 46% (10,389,980 of 23,922,268)
/dev/sdc1 /backup 2% (6,976,916 of 480,719,056)