and experienced knitters know 'tricks'
1 make scarf double wide. finish, block, fold in half (lengthwise, so its half as wide. seam and make a double thick (2 sided scarf)
knit in simple double knitting
(cast on even #
every row: K1, S1 (repeat across row)
(again a double sides (double thick) scarf
knit scarf in round (again double sided, double thick scarf)
work in 1 x 1 ribbing (and make a thick scarf, that looks like stocking knit (and is almost as thick as a double layer scarf!
there are other options.. USE the curl.
In Scarf Style (Pam Allen editor) Amanda Brown has a stocking knit scarf (Ruffle) that USES the natural curl of stocking knit to make a curled/(rolled over) edge on a ruffle scarf)