[heliodor]

You can pin yourself to the top of Whatsapp and write to yourself. Explain that to her. It's what I do and it's been phenomenal.

[toyg]

Yeah but you're still limited to the chat mode - you can't consume the data in any other way. With a bot, you could provide some sort of other interface - either via bot commands, or an alternative web view, with fancy exports etc.