i have (on hand at all times) light and dark gray- cream- white, black, taupe (natural)
then i keep adding colors- each time i place an order for re-stocking the basics i add a couple new colors- since i work in many, many colors regularly and i never know when someone is going to call-and say i want bright green thread - or what do you have in purple---i'm trying to have a good selection- when i find a special with a 'collection' of colors i buy it- i'm up to 60+ colors now-