Deductibility of Business Mileage

I am self-employed.  I work out of my home.  I would qualify for a home office deduction, but don't take it.  Can I take ALL my miles driven between my home and my customers and back again?  I keep reading that the mileage from my home to my first customer and from my last customer back to my home are "commuting" miles, but instead feel that I should be able to claim ALL those miles on my Schedule C, since my home is my principal place of business.  In advance, thank you for your help on this!