I have a Capitol One Business card and try to use it for everything business related; Gas, Repairs, Maintenance, even food. Why? Because it gives me a record of my expenses, broken down into categories easy identifiable for tax purposes.
It also gives me proof of date, time, and location, which is acceptable to the IRS since I don't Log on a daily basis.
I pay it in one lump payment at the end of the month and pay NO interest. But I do get points for every dollar I spend, for prizes, airfare,or Cash. so to me its almost like they are paying me, and doing a lot of my accounting work for using their money.
May not be the best way for you but it works for me.