I am starting a business and I would like to get more customers into my shop. Do you guys know any other marketing techniques that shows better results that I don't know?

I think one of your best bets is "relationship marketing". Most of your cost is involving paying for dues in organizations that your business might cater to, or to networking events, chamber of commerce, small business organizations, and local clubs. The rest is up to your time and your ability to network.
You can also connect to consumers with simple and inexpensive direct mail pieces. Write a simple letter (the keyword being "simple") and start sending them around your town. Just say what you do, and why you're different from others who offer the same services or products. Put together some type of promotion, to entice those who read your direct mail piece to "try you out". Two things are important here: a simple promotion and a good list of potential customers. Your local Chamber can help you with the latter.
Referrals are also good. Give your customers a reason to tell their friends about you. Offer both the current customer and the new, referred customer a "reward" for their business.
Finally, get in touch with local newspapers and magazines: you'd be surprised how many times they're looking for interesting business stories to tell.
Good luck and have fun!