The agent was smart enough to understand, and after a 15-minute hold time (where the minutes ticked by and I wondered if I would be able to make the Allegiant Air flight that was now taking off in 35 minutes), he came back and let me know a manager had approved the changes without any fees.

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"In order for the agent to say this is an appropriate mortgage for you, you would have to reveal a lot of stuff to that agent that you might not want to reveal, " he said, noting that a smart buyer would lose negotiating leverage if she let the seller's agent know how much she could afford to spend.

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Robin and Agent 99: Where would Batman or Maxwell Smart be without their trusty sidekicks?

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When a passenger steps forward to get on a flight, an agent could hold up the boarding pass and passport in front of their smart glasses, scanning barcodes on the two documents simultaneously.

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