Use a reasonably-sized font: either 10 characters per inch or a 12 point font. And choose a font that is easy to read rather one that is decorative: "Arial," "Lucida," "Modern," "Palermo" or "Times New Roman" are some good choices. Scripted fonts are hard to read even if they do make your paper "look nice"; it is the content of the paper that is most important, and making it easy for your readers to understand that content is always a good choice.
Grading is a lot easier when it's multiple choice. But essays? Presentations? Projects? When subjectivity gets added into the mix, things can get a lot more complicated. Learning to create a comprehensive rubric for multi-part assignments helps to guide you through the grading process and it is helps your students learn more about the areas in which they need to improve and what their grade actually means. You can choose your grading criteria, assign point values, and use your rubric to make your grading a whole lot easier. See Step 1 for more information.