I say I'm going to quit exclusivity every month around the 20th 

Same boat, keep adding new work, income keeps dropping now making under a 1/4 from my personal peak in 2010.

I'm uploading via Q-hero, after you upload a batch you can download the batch with the Meta Deta attached to the files, ready to upload elsewhere when the time comes.

same for me. 6000+ images, exclusive - 7 days this month with 0 sales.

With the current level of decline if I'm still exclusive this time next year, I will be homeless 

I mess around with many of them.
I have the VSCO films 1-5 for lightroom, though for stock I don't find them that useful.
For bright vivid landscapes I would recommend film pack 4. The Slide film pack.
I have the Nik software Pack but don't use it much, I think because I was using Rad Lab
http://www.gettotallyrad.com/radlab/breakdown/ first and got used to using that.
Then I purchased, http://www.alienskin.com/exposure/index.aspx
which I now use the most, I find this one the best, personally for me.
Both the rad lab and alien skin exposure both have free trials, I'd recommend giving them a go, especially Alien skin Exposure.

From what I have been told, Stocksy require image exclusivity, hence all their content will only be available on Stocksy.