a fine detail
you could put all the stitches onto a stitch holder..
BUT stitch holders tend to be stiff (some are sort of like a DPN, with a cap on each end, other are like giant safety pins with out the spring coil)
and because they are stiff, they can get in the way of the knitting (especially when you are knitting a dozen or so stitches for a finger on a glove!
if you follow Ingrid detailed directions, it will be easier to work the fingers!
and as she says, LEAVE the yarn in the stitches..
then if you need to frog.. you can frog down to the 'thread' (life line) and its easy to pick up the stitches again, and start over!
I like to use pearl cotton for this.. (its smooth and slippy!)
DMC (the embroidery floss company) makes packs of pearl cotton called "crafting cotton" it looks (at first glance) like heavy embroidery floss, but look again, and you realize its spun tighter (its doesn't separate into strands the way embroidery floss does.)
a pack of 10 skeins (each about 10 yards) comes in a selection of colors (light, dark, white and black) and will last half a life time (and cost about $3!)