Who's idea was it?

Katie has a new favorite question....'How 'bout we do that?' And she'll ask it whenever I give a suggestion to a want of hers. For instance, she'll ask for a popsicle and this is the conversation we have....

Katie-Can I have a popsicle?

me- how about we wait til after lunch? Then maybe you can have a popsicle.

Katie- How bout we do that, mom?

me- how bout we do what?

Katie- How bout we have lunch first then we can have a popsicle? How bout that?

me- I think that sounds like a great idea, Katie!

Now, you tell me who's idea that was. Mine or Katie's?