Connecting Threads' Essential Cotton Thread in Silver. It's a 50/3 weight thread that retails for $2.49 US per 1200 yard spool.
Lint can make or break a thread for me. Does anyone like to clean lint out of their sewing machines? I secretly love pulling a fresh sheet of lint out of the lint catcher in the dryer, my sewing machine not so much.
I received this thread in a swap from Heather at Crafting... and she'd warned me that for her machine it was, well, a lint machine. So I was pleasantly surprised to find that there was very little lint produced with mine. There was so little that I'd actually consider going 2 or 3 bobbins before cleaning - not something I can always get away with.
This is a fairly thick thread for a 50 weight so the seams did not lie as flat as I would prefer, but were still acceptably flat.
So to summarize:
Price: $2.49 / 1200 yd spool or $0.002 per yard. A+ on price!
Lint: not much at all. A on lint
The flat factor: Acceptable. C+