another thing. Facebook is still used a lot in Latin America. You might find a group for expats in Uruguay. We also use Marketplace a lot for used stuff, and like Craigslist it's always worth a check.
There's usually weekend faires where you can get local produce and secondhand stuff. If you ever need help in English and you're far from a government building or your consulate, go check the libraries or the public universities during the morning. If you explain your situation slowly they'll get you someone from English Studies and they'll be happy to help.