Only for my rent and water bill.
All my other bills I pay online either with a credit or debit card (with low limits and not connected to my bank account).
But my rent and water bill don't have online payments (why??? it's 2010!!) so I either write a check or get a money order for them.
I dread writing a check anymore. I don't like handing my account numbers (on the bottom of the checks) over to anyone.