There is nothing like a flyer on slick glossy paper with a coupon to get your business going. I remember a research study conducted years ago for mail-order ads on what colors got customers to respond the most. Back then it was Hunter Green, but I suppose the effective ad colors for today would depend on what is being advertised. I use a company that does both flyer printing and distribution in Singapore for my shop. I sell cutlery and I repair and sharpen even ancient cutlery. My flyer is a mix of black and silvery gray and fluorescent orange. It is a real attention-grabbing flyer. The colors suit my shop too. I have incorporated them into everything from the facade to the store furniture and signs. If you have seen my flyer, you will easily spot my shop.
I sharpen cutlery for restaurants as well as sell it to them. I also do a lot of consumer sales and sharpening. Ancient cutlery and blades are regularly brought to me to restore their edges. It is not something I take lightly. I have learned metallurgy including how to resharpen Damascus steel and ceramic blades. One of my favorite jobs is honing a new edge on a sword that is hundreds of years old or more. My flyers keep bringing in the business too. I have a new campaign about once every three months, and I really do not do much in the way of any other advertising.
This method of marketing works well for me as it is local to my actual business where I want to acquire my walk-in customers, and it is very inexpensive to carry out. I can have thousands and thousands of flyers distributed for a low price. Much lower than what I would pay for even local television or radio advertising.