How to get leads

You write a book about it once you have the secret sauce and you wont have to get leads. HAHAHA Im funny.
I’m a huge believer in SEO, SMS, cold calling, drive for dollars, bandit signs, forums, facebook, and everything in between. Don’t rely on one is my point. Find a few that work for you.
Remember measuring ROI. If you spend 10K a month on adwords but it nets you 10K (nets if the key) then is it worth it?
Now the pandoras box opens… how much time did it take to net that 10…simply though Im stoked if i spend 10 and net an easy 10 - thoughts?