I also want this, even just $40 (i.e. "2x") would be plenty. The way it is right now, Pro is a tight squeeze but anything else is total overkill and I have no idea how I'd use those extra tokens productively.

Just create two $20 plans and swap between them when you hit limits.

Is it easy to get CVP on two accounts at once? Do they make any attempt to prevent or penalize multi-account usage?

How do you switch between then easily? Aka not logging out and in each time.