LOL, I know- I can't tell you how many times, I've been doing the hunt and peck through the bundles of cables, only to find out it's missing a label, illegible, or in the wrong room. (the hours wasted, sigh....)
Techs get one pass, but otherwise its a fireable offense in our organization. Its a hard stance in our company, which has cut down countless hours in troubleshooting and service, which I strongly agree with labeling all cables- being on both sides of the office.
NOTICE: This comment was moved from an existing discussion: IP Camera Cable Labeling Guide