When I asked this question about prices, another contractor told me to look in the yellow pages and see how many contractors advertise price. I looked, and found none.
As far as the phone goes, Your bigest asset is answering your phone, not a machine. Get a cell, and forward your office calls while you are out. This alone could cost half of your lost business.
The internet, well if you are waiting for business from internet customers, best to buy a rocking chair.
On quotes for small jobs. You can quote any job just charge a trip fee, and apply it to the job if they accept, or give them time and material quote.