Network Usage Email Notifications
It would be useful for users who are faced with monthly usage limits (via ISP) to receive alerts when traffic quotas approach or reach a certain threshold.
For instance, if a monthly quota is 500GB, an alert could be set up to fire on 95% of this, causing an email alert to send at 475GB.
The current usage should also be configurable to reset at a certain interval (day of month, number of weeks/months, etc.).