Our house is set almost 100 yards back from the road, so a poster in my window would have litttle or no effect. I decided that I could have a greater impact if I made an online poster! I used the eye-catching graphic of the cute kids on bikes shown below and paired it with this caption: "With milder weather, there will be more and more bicyclists on the roads. Please be careful!" For my community, Watchung, there are only a few main roads, so I mentioned them by name as places to be aware of bicyclists.
I posted my online poster on the Warren Township Community Forum Facebook group (with over 3200 members) and the Watchung Neighborhood Network Facebook group (with 970m members).
I hope that my online poster has a positive effect!