This was an idea I had today, so I thought I would share it with the DG family. Apologies if anyone has already posted this.
When putting out bandit signs, the biggest problem is keeping them from being pulled up and thrown away. But, you may come across people who pull up your signs and... re-use them and write their message on the back of the signs.
So, write your message on both sides of your bandit sign, or black out one side with a sharpie. The other possibility is to write two different messages on each side of your sign. One targeting buyers; one targeting sellers. This would probably work best in a two lane intersection, neighborhood lane, or something like that.
Hope this was helpful.
RENinja