I haven't knitted much with cottton b/c I started knitting last fall.. but I bought some bernat cotton tots at Hobby Lobby this week and it's soft to the touch and I also bought at my LYS: Misti Cotton: Pima Cotton and Silk.. its about $10 skein but VERY soft to the touch~!! I have one skein in a lovely light yellow...
Let me know what you decide to use.. also the Knitpicks yarns are very pretty too.. ( I checked them out as well onlline)
Hope this helps~
