Actually it'll be good for me to write this down so I can remember what I did...let's seeeee...
For starters, it was important to remember with this bag to make sure the sides you want people to actually see are the ones that are facing out...I also left about a 5/8 inch seam allowance on all sides of all the pieces I cut out...that said:
*You need two zippers the same length.
1) I cut out 4 same sized rectangles for the inner lining and the "outside" of the bag (which is actually the lining for the two pockets. The width of these should be the same as the length of the zippers. Set these aside.
2) Handwarmer Pocket:
Then I cut out two rectangles, exactly the same size as the first four, for the handwarmer pocket. Then I cut the corner out of them. I finished off the edges of the corner-cutout (cut wedges into the curves so it would fold in correctly, pressed the edges with an iron, in, toward each other, topstitched the corner on the outside) IMPORTANT: are you left or right handed? Think about which side of the bag you want the handwarmer on BEFORE YOU CUT THE CORNER!!! Hahaha...I accidentally made one of my bags "lefty"...THEN, lightly stitch the top of this piece together, within the seam allowance, just to hold them in place for later...
3) Lapped Zipper Pocket:
Two rectangles are cut for this, the same width as the previous rectangles, but one to one and a half inch taller, so you have enough to lap the zipper. Cut these two pieces in half where you'd like the zipper to go. Iron all the seam allowances, and then pin the zipper in...sew it in...this is better is photos...I'll post one next week
Again, sew lightly across top, within the seeam allowance, to hold the top together.
4) I then attached the lining of the bag to the zipper for the top...take care to note that you sew the lining to the bottom of the zipper...
5) Attach/sew the "outsides" of the bag (among the first four rectangles you cut--the ones that will actually end up being pocket linings) within the seam allowance, to the backs of the two pocket pieces you set aside.
6) Cut two pieces out for the strap, press your seam allowances in, attach them to each other, and topstich on each side.
7) Pin the two big chunks you've assembled, AND THE STRAP, to the zipper, but don't sew it yet. Get the two chunks inside out, and sew around them around the edges, back to back. DO the same with the lining, but DON'T SEW THE BOTTOM of the lining shut...that's the last step.
Turn it all right side out, pin the straps in with the zipper and topstich around the outside to install the zipper and straps.
9) then you can pull the lining back out of the top and sew it shut at the bottom...
10) So you start with 6 rectangles all the same size, and two slightly taller ones. Two zippers. The rest is a matter of figuring out what you want to show on what sides, and which side you want the handwarmer on...!