Anyways, here’s a link to the t-shirt version tutorial, and a picture (retaken later) of the finished product of the bag I made.
http://pm-betweenthelines.blogspot.com/2010/03/quick-fix-grocery-bag-tutorial.html
The only differences between doing this project with a t-shirt versus a sweater, is that if your sweater buttons up the front, you have to sew the button part closed. I also added a little fold over closure on the top to further make use of the buttons.
I think I cut the slits too large and I might play around with doing loose zigzag over them to close it up more. I also could’ve left the collar on, it just would’ve made the opening a little smaller.
-Aline