How to Make Extra Money!

I have always thought about the prospect of earning a few extra dollars, especially in the current environment where salaries are just not keeping up with costs! Sifting through various ways I have come up with a couple ideas:

• If you are a CFA charterholder - post on craigslist for your services (teaching / work); 
• Become an extra worker; 
• Online surveys; and,
• Start a blog (not the easier, but doable).

Or could just get a part-time job on weekends.