What are you doing in La Paz
As we were in the process of bribing our Bolivian border guards to get back into Peru, our new Argentinian stranger-friend who was helping us bribe them said to us, "What the heck are you doing in Bolivia". I have been to many third world cities, but La Paz has got to be one of the least rewarding experiences I have ever had. Also, the pollution here is horrific, the smog doesn't go anywhere, it just stays.
Insider Tip:Don't go to Bolivia.