- Keep details of the student's log-ins yourself, for for when a student forgets their login or password.
- Keep a list of spare usernames and passwords.
- Label each computer, laptop, and tablet with a label stating what the guest log-in details are for that device, a log-in that will give the person access to all the standard programs.
Now with the updated link.
Add-ins, similar to Google's Apps for Education Add-ons, add more features to Microsoft Office products. These are usually developed by other parties rather than by Microsoft.