cotton, linen, wool, viscose, polyester, silk....HELP


I am so deeply absorbed at the moment in designing a training course on fabrics that all I can see is 3 pages of different fabrics....When I try to think of the most common fabrics, all I can see is that they are all used...I am too, too close.. Help...I need a quick lifesaver outta here. What are your first five fabrics you think of.