Processes in Microsoft 365 for setting up Office apps, redeeming product keys, and activating licenses.
What's funny is that I wouldn't even mind paying the $4/month or so extra for an Exchange Online Plan or Small Business Essentials to get the e-mail services, but Microsoft doesn't even allow that -- these services aren't compatible with an Office 365 Home subscription, so you have to setup a completely different Microsoft account if you want to subscribe to them.