Grading can be a huge pain. No matter how fast you were, it just takes a lot of time to get through 110 things--whatever those things are. What amazes me though is how willing students are to help out with it. I have students do a lot of my grading for me, and it's awesome. What boggles my mind is I don't give them any sort of reward or anything, but they're so excited to do it. Students complaining because you ran out of things for them to grade for you can really turn a rough day around.