Packing for Backpacking

There are a few things I've needed to purchase for this trip. I started by getting a new bag. 

And not just any bag. A few months back, I bought myself a backpacking pack (say that a few times fast) and I'm incredibly excited about it. While my giant rolling bags were good companions in Australasia and around South East Asia, they were a pain and a half to schlep around hostels and it was time for them to retire. My new bag fits my body well and isn't too heavy. Although it could do with a nice squirrel keychain for decoration, I'm really happy with it. 

Yet, what do you pack for a 4 month trip to South America?

Thank you vast and wonderful Internet. There are plenty of helpful blog posts from fellow travelers that offer suggestions and ideas for a smart trip. Here's an example of what I've been looking at: Female Packing List for South America. 

And here's a picture of what I ended up packing:

I specifically made my bed to take this picture. 

sleep, socks, family