If you shoot video on devices and need to get it onto your computers, Dropbox is exsential. I use it to make my classroom as paperless as possible.
This is the tool that goes with Word, Excel, and PowerPoint. I require my students to sign up for it over the summer. It’s so great because they can open their documents in free versions of those Microsoft programs when they’re away from home.
This sync tool, underlying all of the Google suite, is a must for the collaborative classroom. We also use this as we edit our wevideos with partners in Iowa.