18"x24" size signs are the easiest to read as traffic is going by at 30-50 mph; even at major intersections when stopped in traffic, they can be seen from a far distance. 12"x18" size signs are less noticeable and should be used in areas where a complete stop is required, or in the inner regions of a neighborhood. However, the 12"x18" size signs are generally not picked up by code enforcement officers as soon as larger signs. You can expect the 18"x24"s to last about the same amount of time as running an ad in the newspaper (three to seven days), but with much more exposure.
We recommend using your phone number as the primary point of contact on your bandit signs, and your website secondary. This is mainly because people tend to write a phone number down or dial it from their cell phone on the spot, while with a website, they try to memorize it, then by the time they get home they probably only remember part of it or none at all. And if they get to searching online, they’re going to be able to look at all your competition. A phone number on your bandit signs works much better.
We recommend that you put out 20-25 signs in the area in which you wish to market. If you order 500 signs, do not put them all out in that area you’re marketing - city ordinances do not allow that. After you put your 20-25 signs out in one area, begin rotating areas. Saturate an area to a point to where people will notice them - not ignore them because there are so many. People will notice these signs when the message targets what they need; when you tell your customer what you do, rather than who you are.
Prime areas to target: major intersections and offramps from the highway. My favorite areas are long stretches of 40 mph roads. Put the signs out on the side of the road, about 10-20 feet off the road, and a quarter- to a half-mile apart, going both ways.