Do you sometimes have to organise a huge layer stack in Photoshop with the help of color labels?

I often have to use huge layer stacks order to be able to make quick changes on the fly for clients who change their minds. As such, any extra tricks to organise and recognise layers at a glance is a massive help.

Grouping layers is fine and CAPITALISING written labels helps too. The thing I use the most though are the color labels, of which there are only seven (or eight if you count none at all). I have a system whereby each color has a consistent specific purpose, which leaves me just two alternate ones to switch between for random labelling. Why just limit them to seven? Sure, by all means keep the default colors, but why not have the option to access swatches and/or indeed apply any color you choose? Ideally I would like to assign, say, different shades of one or another to indicate subtle differences in meaning. What better way is there to organise things at a glance?  In the Foundry’s “Nuke” for example, you can create labels of any color at all in your node tree. SO useful.