The Rules for Poser 5 and above, The Texture Edition

1.  Character texture creators who use Photoshop (or other layer-capable program), when creating textures for Poser 5 and higher, shall:
a) Create the base skin layer with no makeup, no hair (including eyebrows and pubic hair), no tattoos, no highlights...nothing but skin.
b) If they wish to provide makeup, hair (including eyebrows and pubic hair), tattoos or other such details, they will do so via Material Room and the Blend node.  The tutorial on how to do so has been here for nearly a half-decade already, people.  You will damn well learn it.
c) This is true for bump/displacement maps as well.

2.  Any person who adds highlights or reflections to a base eye texture will be taken out and shot.  The eyes of the Gen 3 Unimesh and up characters all have a material to which reflections can be added if it turns your crank, and no, it is not called "iris" or "pupil".

3.  "Variations" of skin tone or eye colour or hair colour created by adjusting hue/saturation values in your graphics program--and doing nothing else--shall be grounds for immediate flogging.  If you wish to provide those options, it can be done through materials or MAT files using the Material Room, not "new" maps.

4.  Unless someone has hacked Poser 5+ to run in DOS or Windows 3.1, for the past 13 years file names can have up to 256 characters.  While anyone attempting to use that limit will also be taken out and shot, it does allow textures to have more descriptive names than "Head1" and "Head2b".  Especially given their other textures that also use "Head1" and "Head2b".

5.  And while we're on the subject, all texture creators will place all their textures in a folder with their name, a subfolder with the character the textures are for, and a sub-subfolder for variations if required, and so on.  If there are common files used for several of their texture sets, they will be placed in the primary folder, not with multiple identical files floating around in the character subfolders.

6.  And while we're on the subject, anyone...ANYONE!...who uses exclamation marks or other symbols to try and get their folder up near the top of the texture directory will be hung, drawn, quartered, and their dismembered remains stuck on pikes to be devoured by scavengers as their rotting flesh falls on signs saying "They wanted to be noticed, so notice them".