Has anyone developed a process to handle Utility Bills (electric, gas, etc) in Payables?

Has anyone set up a process  to handle how they process utility bills?  Since most utilities bill invoices don't have invoice ids and invoice dates and usually don't require approval, have you come up with a way to handle them differently than other invoices.  I'm wondering if anyone is using any type of recurring vouchers or something like that help streamline the process.

Thanks

Michelle