How I Can Make Adwords Campaign more Effective

I am new to adwords and Just get 75$ coupon can u share some tips how i can make adwords campaign more effective.

- Which country is good for advertising. (US traffic return good adsense click though my targeted traffic country is asia )
- How about setting min CPC like 0.01$

... I have recipe blog.

get high ctr and use negative keywords

Check out the $450 profit thread. That guy knows what he's talking about.