There are very few "good" ways as far as I know. If you are not doing all the legal requirements to report your income earned out of the country and go through the hoops required to actually receive wire transfers into your bank account here (which, of course is not good either because you will receive pesos at the official rate, after conversions and fees and such) you have a few options and only one of them I consider "good", although they all involve going through some hoops and costs to get the money.
To get the money down here:
1) Send your money through Xoom or Azimo. You still have to declare the source of your money (and the fact that it's going to you, keep in mind) to them to bring down any kind of consistent quantity (a lot of threads have talked about the limits and the requirements) and although you get better than the official rate, you still get below the blue rate.
You can have your employer send directly to your account outside the country and you send the money to yourself, or you can have the employer send to you directly through the service.
2) Go to Uruguay and pull your money out in dollars at ATMs. Obvious costs are time, tickets on the ferry, ATM fees.
Your employer would need to send to your bank account.
3) Find a cueva and wire money to the banks accounts outside of Argentina that they point you to. You are probably looking at 4-6% payment to the cueva for moving your money. The advantage is you can have dollars, or pesos at a good blue rate based on the amount you sent down.
Money can come from your bank account or direct from your employer.
4) Find someone here who wants to get money out of the country. Could be expats who sold a house or something, people of whatever nationality who have businesses that generate a lot of cash, etc. The good thing about this is that it generally doesn't cost you anything except transaction fees. wire the money to their account outside of the country and they give you the cash here, at whatever rate you may have agreed to (I use Ambito nowadays and average the buy/sell price). These are not easy to find, and what i call the "good" way.
Again, money can come from your bank account or direct from your employer.
All of these involve some sort of cost. Wire transaction fees, ATM fees, etc. I don't know anyway to get around that at some point in the transaction.
I think someone mentioned previously some kind of a "co-op" like organization that organizes send and receive needs between parties to give a solution like #4, but I don't remember where I remembered seeing that, or when.
I won't mention BitCoins...
Oh - and never take money out of the ATM or pay with an international credit card unless you have no other choice whatsoever.
