I have some ideas on my blog:
http://mindrosity.blogspot.com/
See for example this discussion on using lifecasting to encourage good behavior in a world where few people are genuinely religious (you could also combine this method with a traditional religion):
http://mindrosity.blogspot.com/2007/07/justintv-vs-god_07.ht...
http://www.ocf.berkeley.edu/~wwu/cgi-bin/yabb/YaBB.cgi?board...