In Argentina, the "peso" is the form of payment. The rate of exchange is 1 Euro = 7.95 pesos (November 2013) but look for the current price at www.oanda.com.
Nowadays you can ''pin'' almost everywhere in Argentina with a debit card ( "Cirrus" or "Master Card" ). You can obtain most of your pocket money locally in ATMs but we strongly recommend to bring an amount of cash (US Dollars/Euros - good condition notes) as well. You can then go to a currency exchange/bank and swap them for pesos. In the case of US Dollars, you can even use them to pay for excursions. A credit card (Mastercard or Visa) is also useful to take along as a safety net for emergencies.
The safest way to carry money and papers is to bring a cotton money belt under your clothing, there it is not visible. American dollars are not accepted if they have tears. Pay attention when you change money!
In South America it is customary to haggle on the price. This happens much less in Argentina however than in the more northerly countries. Priced items are generally not open to negotiation. In markets and the like you can give it a go. The negotiation is usually done in a friendly and lively way.
Allowance: The allowance recommended by us a minimum amount for your meals, drinks, optional excursions, entrance fees, local airport taxes and gratuities. The amount you actually spend will depend a great deal on your own habits and so souvenirs are therefore not included.