This is a sure working trick.
Get a T-shirt printed with a nice graphic and your site url(without the
http://) printed right below it. Be innovative and get some real good and complex and most importantly eye-catching graphics that relates to your theme. Below it you have ur website in clear block letters.
Wear it out to a couple of malls and multiplexes and whenever you have a chance. This is a form of advertising that will provide you traffic eternally
It works nice if your site is product oriented(not blogs and all). All the better if you can get a design that relates to your product