Here are some actions i have identified, but over time it changes, which should i work on first?
1. run a whitelist + blacklist instead of just a blacklist ron campaign
2. split up individual large sites/placements and optimize specially for them
3. test different geos
4. test different offers
5. test different angles (banner/lander)
6 .test different traffic sources
7. improve on existing angles with copy change (important variable yet not first or 2nd priority in my niche usually)
i know the standard answer here is to test everything, but then the work spirals out of control, there will be so many campaigns and so many variables and its not going to be managed well and that leads to potential unseen losses