You have various options for collecting assignments, and even deploying quizzes or exams via the web
Professors can collect file-based assignments (papers, homework, and so on) using D2L's dropbox feature.
Tell your students how to name digital files, starting with their last name (i.e. JonesHIS201Aessay2). Have them stick to letters and numbers, with no special characters (ex. &*#_) or spaces. D2L dropboxes cannot accept many special characters.
If you prefer or have experience with Google Forms, this is also an excellent option for quizzes.
D2L dropboxes are probably simplest for collecting files like .docx or .xlsx. But if you have students create video or audio files, Google Drive is particularly helpful because Google Drive plays these without requiring the viewer/listener to download them. And students can collaborate using Google's onboard tools, like Docs, Slides, or Sheets.
Simple Sharing: Students share files with you, but not with each other
Create a Simple Sharing Folder for your Course. This can allow students to upload files that are then shared with each other. Students might collaborate on Google Docs, or upload video files that they then share as links in D2L discussions.
Don't like D2L's Quiz tool? Use Google Forms for Quizzes
A lot of classes will use fairly traditional assignments - writing, mathematical computation, and so on - online just as they did in face-to-face format. That makes perfect sense. But if you wish to provide some variety, consider some other ideas for having students demonstrate their understanding of course concepts.
Simple Possibilities for Student Creation and Interaction
Dr. Jennifer Stowe has assembled a great set of variations on student discussion activities. These will get students creating, and thinking about how they learn.
Have students quickly make websites using Google Sites.
Google Sites allows for quick website creation. It's limited features means students don't get bogged down in technology issues. We have a complete tutorial set for Google Sites. You are looking at a Google Site (this COLI faculty prepardedness guide,) right now!
Diagrams, charts, and infographics using the free version of Canva or Google Drawings.
This is a simple example of what a student could create in canva. Actually, more is possible: timelines, workflow schemes, mind-maps, and other infographics. Canva's free version is intuitive, supplies some basic graphics to work with, allows uploads, and has tutorials.
Click the image to the right for a larger view.