Just adding to the list:

• Absolutely no "generic" texture names. As was said earlier, how many "eyes_blue.jpg" textures do people have? C'mon, at least put the character name in front of it, such as: yuma_eyes_blue.jpg.
• Triple-check the MAT poses for path names. I can't count how many times I've had to correct MAT poses that had pathing information like "f:my filesgraphicstexturesstuffblack.jpg" Or maybe this should fall under the "testing" done by the staff here.
• Name your textures with the same name as your character. Six months after I've extracted everything, how do I know that the "BLmanHead.jpg" texture goes with the "Elfin King" cr2 character? Name the texture "ElfinKing_Head1.jpg" instead.
• ALWAYS zip file from your "Runtime" folder with "use folder names" checked. I don't want to have to read instructions in a readme file to know that that the bldress.obj has to extracted to runtime:geometries:john:clothing:dresses. On a similar note, double-check this. I hate opening zip files to see that the folder names all start with the same name, such as: johnruntimegeometriesdress johnruntimelibrariescharacter johnruntimetexturesdress If you extract these files, yep, every single one will go to c:program filesposer 4runtimejohnruntime... and not the proper places! By the way, is there any chance that these standards can be applied to free stuff as well? I know that people will say that free stuff is free, so who cares. But, once providers get into the habit of zipping their free files, they may not change their habit when zipping items for sale.