Email / notify "suggestions" to users
I was away recently and tried to turn my hot water off until changed by me so it wouldn't heat in the evening. By mistake I turned the hot water on, rather than off - so when I got back I realised that I'd actually had the hot water on for a week. Given all my users were away, it would have been great if Tado could have sent me a notification after an hour or a few hours or even a day to say "hey, I know you're away but you seem to have turned your hot water on. Is this intentional?" It would have given me warning that I'd made a mistake and meant that I could have fixed it a few days before I found out!