I had an excellent teacher/guru to help me: Jill from Amy's Golden Strand. Jill is the Manager of Amy's Home Studies, and boy, does she knows how to kit!
First step... lay out the 20 Ziploc Gallon-size bags on the tables, creating 20 different stations. All of the donated Threads are spread out on a nearby table; waiting their turn.
Round and round I went. Dropping off 1 thread type at each station, counting all the way. Making sure there were 20 total, and only one per station. This is what I refer to as the "Wilensky Method of Kitting."
Here is the close up of one kit. Threads from companies including Gloriana Threads, Week Dye Works, The Thread Gatherer, Caron Collection, Sundance, Rainbow Gallery, Kreinik, YLI, Wichelt/Mill Hill, Vineyard Silk/Wiltex Threads, DMC, Burmilana/Amy's Keeping Me in Stitches, Fabulous Fibers & Embellishments, Dream House Ventures, Renaissance Designs, and Colonial Needle Company. Graciously all donated! Unbelievable! How wonderful is that! I will go to each Company at the TNNA Market, and personally thank them. I will also show off Katt Z. Witch so they can see how fabulous their fibers worked. If it looks like a lot of threads... well, it is. But actually, what else could I do? After all, I was working with a beautifully painted canvas by Kelly Clark Needlepoint.
Then Jill showed me her Counting Method. Make a note about how many threads are to be in each kit. If that's a large number, she said to break things down by shape or thread type into smaller bundles. Once all threads were placed, I made my master counting plan.