To add to Dave's answer: Foods: Chillies, tomatoes, pulque, avocados, squash, beans, maize, many different kinds of insects (they were indeed important to the diets of many commoners), live animals, vegetables, fruits, and medicinal plants, occasionally domesticated turkeys, dogs, and the Muscovy duck. Non-food goods: read more
A hunter would probably consume most meat close to where he got it. It's thought also that the Aztecs kept a large breed of Chihuahuas for meat. The Aztecs demanded tribute from their near neighbors. Trade could take place locally as well, but trade on more or less equal terms took place with more distant trading partners. read more
Tajaderas were purchased with cocoa beans and then were used to trade for other goods at Tlatelolco, the main marketplace that was regularly visited by merchants from other parts of the world. Aztec Children. Shockingly and sadly as we mentioned before, Aztec children were also used sometimes as currency. read more
The Aztecs had gold, but rather than assigning it a monetary value and using it in trade, they used it for arts and architecture. Cocoa beans were valuable, however, and they often used them in place of coins. The Aztecs bartered using other goods as well. Pochtecas were long-distance Aztec traders and were considered their own class. read more