Do I need a business credit card?

Hi-
I intend on forming an LLC soon. Once I do this I can register with the state of Washington and then get a business checking account.
So far I have paid for a few small items with my personal card. Is there any benefit to getting a business card? I just want to keep things as clean as possible. I can also get another personal card that I only use for business and then only pay with my business checking account once I get that set up.

Any thoughts on the best way to manage all of my payments?

Thanks, sl