Will UPS send me free boxes?

I'm curious to know if UPS offers any kind of free boxes for shipping purposes. As a frequent shipper, it would be incredibly convenient if they provided such a service. It would save me time and money from having to purchase boxes separately. Do you know if UPS has a policy in place where they offer free boxes to customers for shipping? If so, are there any specific requirements or limitations that I should be aware of? I'd appreciate any information you can provide on this topic.