You touched on the difficulty of doubling as the amounts grow larger. It is easy to find a dollar or two but when you grow bigger than that, to double it means you will have to find the money outside of the upvotes.

I look forward to seeing just how inventive you will be. Keep in mind that getting to $1 million is only part of the story - just as important is that you learn from the experience - and if we are lucky, you'll teach us something also.
:)