Comment Multiple sites and devices (Score 1) 688
In a corporate environment the asset tag is a good start but with multiple sites and devices you can expand on it with:
Site ID-Device-Asset tag
The device is usually a workstation (w), black and white laser printer (lb), colour laser printer (lc), etc...
This way the support guys at least have some idea where it is and what it is when they get a call. The name is unlikely to change as moving kit from site to site doesn't happen often.