Some time ago I found the pattern for this bag on http://sentimentalstitches.net/wp-content/uploads/2009/06/so-sew-easy-schlep-bag.pdf and about a month ago I found some coordinating batiks and made it. It isn't interfaced - I think you can do that if you wish. The bag is made of 12 squares and 4 triangles. Click on the address of the site and check out the pattern. The fun of this bag is being able to fold it up, stash it in your purse and pull if out to tote any items that you might, for instance, purchase on a shop hop.
Here it is lying on the floor and
now it's folded with the bottom up. It could be made larger or smaller by varying the size of the squares you use and it is easy and relatively quick. I have a piece of red and white ticking that I thought I might use to make another one. It would be considerably stiffer - mentions the fact that you can use decorator fabrics,too. Could be for a gym bag - lots of possibilities. Sentimental Stitches, the website, has lots of free patterns and also ones for sale. That is the site I found the Nancy Page Vine quilt that I want to use as an idea for my hexies. Lots to see there. (Click to enlarge)