Blog commenting is very effective method.

Commenting and participating in forum that let you include a link to your website in your signature line or at any other part of comment. Forum can act as an ideal marketing tool for your business. It helps in learning the avenues for your business through the constant interaction with other members of the forum. Forum discussion finds it’s receptive or the readers of its content, the more hot the discussion, the more traffic you can create.

article marketing is my main arsenal.

Social networking! The best traffic source for today, I suggest to focus on it

Everything SEO,SMM and SEM.

If you are limited to time. There's only one thing worth doing to increase visitors to your site.

Forget everything else. Add new high quality content to your website.

Second best thing. Get OTHER people to add QUALITY content to your site.

If the above two things are being done on a daily basis, every day, you will get more traffic than if you do anything else.