Who knows better how to get rid of paper than a waste-management company?

And yet, two years ago, the small law department at Milwaukee-based Onyx Waste Services Inc. was in danger of drowning under a slurry of law firm invoices. It wasn't just the amount of paper coming in; an outmoded practice of hand-delivered, hand-approved bills for legal services was crippling the company's entire invoicing system.

So Teresa Seem, one of four in-house counsel at Onyx, enlisted the help of the