I recently discovered a little trick that I could probably sell as a WSO but I've learned so much from the WF it's payback time! I haven't seen this technique mention here on the forum but that's no guarantee it hasn't been explained earlier.
Consider this...Did you know that you can get $.01 clicks when using YT promo program? I just discovered this last week and it works like a charm. Not only can you get $.01 clicks but you also get a CLICKABLE link to ANY URL directly on your YT video! Here's how it works.
Just set up a promo program on your clients video and set the daily budget to $.01 and the max cost per click to $.01. Here's the key...after their daily budget is exhausted after one click your ad REMAINS on your video but does not appear with other YT promoted videos. So you get $.01 clicks when someone clicks on the link in your ad on your YT video. And remember, this link can go anywhere, including affiliate links!
After you set up your clients promo, go to their Settings page and add a Call To Action Overlay. This overlay is the the key. It will appear directly on their video and it can have a CLICKABLE link to any URL, not just another YT video! THIS IS HUGE! Remember, your client will only pay $.01/click no matter how many clicks they get. I've set this up for some of my clients and directed the clicks to squeeze page. We're seeing more and more opt-ins every day! Just be sure to set up the Call To Action overlay or other YT ads will appear on your clients videos.
Hope this makes sense. If not feel free to ask questions and I'll do my best to help.