I like the lights however, this is a GREAT way to get dusty thread that will clog up your sewing machine. I keep mine in a craft cabinet on wheels - with color coded drawers. Kept away from dust and sunlight (the enemies of thread and fabric).
Backside of soon-to-be-thread rack. I think the count on these is 900+. 3-inch golf tees! I had started to affix them one-by-one, but quickly went insane. Instead, I just sandwiched another piece of wood to the back to press the tees into their holes.