How much should I charge for snow removal?

I plan to start a snow removal business for my neighborhood. I will invest in a $500 snowblower, $50 for gas, $60 for brochures, and maybe $30 for salt. There are 50+ houses, but not everyone will want their snow removed by me. Furthermore, the people who clean the snow from the streets charge $30 to do the driveway. Having said all this, how much should I charge to snowblow and salt each driveway? Also, any tips for how to spend less, what to put in brochures, or what to say when going door to door?