Sorry to hear your cat is missing. Ours went missing a few weeks ago and has now come back. He must have been stuck in a garden shed. We actually hand wrote notes (our printer was not working) and posted them through our neighbours' letter boxes quite late in the evening. Corfu was freed at 3.30am in the morning so the personal touch must have helped. I am not saying you should hand write your notes but you could print as many times as you can and post them through people's letter boxes. Also put posters up in hot spots if you have not done this already (bus stops, train station, supermarket...) Good luck and keep us posted.