Separate business credit card and personal credit card?

[Adam Beaumont]

I only have one rental property, and I use my personal credit card to purchase whatever I need for the property.  Any thoughts on exclusively using separate credit cards for business and personal expenses?  My main concern is the headache of separating the charges come tax season.  I rarely use my credit card for either business or personal expenses, however.  But nonetheless, should I have two separate cards?