In our office buildings every receptacle, most junction boxes. whips to furniture etc. get a label that indicates the breaker panel and breaker(s) that turn them off. Every panel has a label on it indicating its name.
Ever come to work on Monday the day after the painters have repainted the entire office? They take off all the plates and replace them in random locations.
worse than that is this happens the morning the engineer is doing his final walk through to check on spec compliance and to sign off. The first circuit we turn off is mis-labelled and we look like morons until the clean up guy tells us about the painters over the weekend.
Fortunately we had good as builts to rearrange the labelling.
