If you use Google Docs for your writing, there are several cool tricks you can use to increase your efficiency. Here is one thing that has made it much easier when it comes to turning in assignments. Previously, one would create a document in some word processor, work on it, put it on a thumb drive, take it home and work on it, take it back to school, perhaps a lab computer, maybe it is also worked on in the library, etc. Eventually, you finish the document and then to turn it in you can either print it off (got to go find a printer or where I put that extra paper) or email it in. This last option is terrible if you have a large class!
If you are using Google Docs, you can just share it with the instructor. In the sharing options, you can designate that you share with someone but only allow them to make “suggestions”. This keeps the integrity of your document in place while allowing another person to mark it up. Once you share it, they can open it and write in it but any and all changes to the document are indicated via a highlight color. Since both of you are working on the document, there is no need to email it back and forth, there is only one document.
Here is a short video how that is done if you need more visual input.