Joyce Wycoff shares an interesting strategy to keep employees from being late to work:

On Monday morning, my CEO and I stood at the company’s entrance lobby at 8:30 am sharp, the time employees were supposed to report for work. There was a constant stream of latecomers. As people strolled in, my CEO and I gave a warm smile and shook their hands, greeting them with a hearty ‘Good morning!’ ... then we handed each a slip of paper ... still smiling.

It read, "Thank you for coming to work today. I was here at 8:30 am to welcome you. Would I have the pleasure of greeting you tomorrow morning at the same time? Signed, CEO"

After a few days, there were no more latecomers. And we saved a big chunk in production costs.

This would be a lot harder in those law firms where 2000 billable hours is the norm.  In those firms, the managing partner may need to stay in the firm’s lobby and keep people from going home. ;-)