Trash Bags tutorial, Step 1

Step One: The Prep 

 Two Fat Quarters (or their equivalent) are used for each bag. They'll both be cut into two pieces: one 14" x 20.5" rectangle, and one 3" x 20.5" strip.

This is a great project for strange, awkward, or non-quilty fabrics. For this tute I'll be using a FQ of this light denim-ish fabric for the outer shell:

 

The lining (inside the bag) fabric was going to be this FQ (shown already cut into its rectangle and strip):

but I decided instead to use some scraps:

Body rectangle

Strip rectangle (on top)

 A third rectangle, 14" x 21", is cut from some clear plastic. Weighing down the edge helps greatly in keeping things from shifting.

I've used a medium-weight PEVA shower liner (I think it's 4ml thick), from which I could cut 12 rectangles (= 46 cents each). I've also used a roll of Husky-brand plastic sheeting (10' x 25', 3.5 ml) from which I could cut 100 rectangles (= 13 cents each). Anything thinner than 3.5ml is too flimsy, so don't even bother with the 2ml plastic drop cloth. (For my CF!Q friends: I've got plenty to share, so you don't need to buy your own roll or curtain.)

Next step: Constructing the Liner and the Shell.