The chemistry kits are selling well enough that it’s almost time to order more components. I really don’t want to have to backorder the kits, particularly between now and September.

I dithered about how many kits’ worth to order, and settled on 56.  If that number sounds odd, I chose it because the chemical labels are printed 28 per sheet. Also, that’s a convenient number for kit assembly. We can make up all 56 chemical blocks and small-parts bags in one pass, and do final assembly of the kits in four batches of 14 each. Finally, 56 boxed kits occupy more than two cubic yards, which is about all the space I want to devote to storing finished goods inventory.