Give yourself plenty of time to enjoy Casapueblo..
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Buy your tour to see penguins at local travel agency at end of pier.
Volunteer point has the large king penguin colony, as well as magellenic and gentoo penguins. DO NOT miss this, and save more than $100/pp by booking tour locally.
Local people can tell you where to buy high quality leather goods away from the Florida St, tourist area.
Try to buy excursion tours, especially for penguins at Puerto Madryn and Stanley, from local companies, as Princess tours are overpriced. Also, get to theater early, as it completely fills up.