There are a Thousand shades of White. . . .this is only a Fabulous thing in the Paint & Textile world. Not your Laundry. Here's the answer to Forever banning Yellow on your Linens & Shirts -
Spray areas that Tend to Yellow with Hydrogen Peroxide Before you wash . It's really that Simple. And Gentlemen . . . If you are feeling Exceptionally apathetic - just pop 2 aspirin in the load.