Money is just a relative term for exchange. As long as there is a supply and demand then there will be money. The question might be: If money did not exist as we know it then what do you have to offer in exchange to get what you need to live?
loveual favors, my only other currency.
The world did exist before money was invented -believe it or not!- so I'd assume we would continue along the same tracks.
I will trade you 2 pigs and a virgin for that house, my good man.