I'm a sole-proprietor and travel for my business. Rather than claim the actual expense for travel, is there a per diem rate that I can use on my taxes, for the days I'm out of tow?

There are standard per diem rates for food and MISC expenses; see link below:

Per Diem Rates (http://www.gsa.gov/portal/content/104877?utm_source=OGP&utm_medium=print-radio&utm_term=perdiem&utm_campaign=shortcuts)

The hotel per diem rates are NOT allowed to be used in lieu of actual hotel bills.