To lower your cost per click in adult affiliate campaigns, start by targeting your ads carefully. Use specific keywords and demographics to reach the right audience, which can reduce wasted clicks. Platforms like native ads or pop-under ads often have lower CPC compared to display ads, so explore those options. Optimize your campaigns by testing different ad creatives and landing pages to see what gets better click-through rates. Higher engagement usually means lower costs over time. Also, consider using cheaper traffic sources like tier-2 or tier-3 countries where competition is less intense. Monitor your campaigns closely and pause underperforming ads quickly to save money. Finally, negotiate with your ad platform or affiliate network for better rates if you're driving consistent traffic. Small tweaks like these can make a big difference in keeping your CPC low. What ideas do you have for reducing CPC in adult campaigns?