I know now where I remember it ! was off on a shopping trip, ate an ice cream treat and twigged my memory! A Kniffy knitters yahoo group ,I belong too has been talking about them! making mesh bags for groceries etc. using the kniffy knitter or crocheting one. here is one from a blog: htttp://crystalkini.blogspot.com/2006/03/more-bags.html. l googled crocheted mesh bag patterns (I am a crocheter) and lionbrand knitted hobo bag pattern came up. http://cache.lionbrand.com/patterns/50922.html. I know there are patterns for making crocheted bags out of plastic grocery bags too.
http://home.inreach.com/marthac/totes.html - if you crochet, here is a link. Actually lots of antique and vintage books have patterns because back then you had to have them, no other option.
Not that I have used the kniffy knitter yet but people do use them, have been changed the reg knit pattern to be used on the kniffy knitter. Since you can knit :) you just need the circular needles. I am not sure if that is exactly what you are thinking of, if not let me know and i will see what I can find.