Just out of curiousity...if you were down to your last 5k in adspend what would be the campaign you setup on FB to to profit hard?
What niche? Offers? Etc.
I only ask cuz I am doing well in one niche...but I'm kinda stuck in a box w/ that one niche and while I'm averaging $500-$1000 a day right now I really need to double and triple that.
I'd love everyones ideas & thoughts. I know its a broad question...but any ideas would be great. I'm currently making all my rev from promoting FB Pages w/ offers on the pages.
expand to more ages/demographics and try to twist ur offer into another niche.
take for example: coreg paths.
these can be expanded into every single "niche" thinkable. read the guide on setting up your own coreg path. a good network for coreg path offers is silver path
good luck bro! 
If u have dating niche, just copy/paste to POF.
How well is that campaign optimized? Have you tested a tonne of images, ad copies, landing pages, got rid of any demographic losing you money? Have you tried going direct to get a higher payout? If you said yes to everything, then look to the FB ad spy to get inspiration for new campaigns.
I would cloak and run rebills.
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