I didn't have a pattern in mind, or fabric and browsed the store. Once I found the fabrics I liked, I looked for a pattern. Pattern companies don't make 'house dresses' any more but the style is about simple lines, comfort, and usually made of cotton so it can be worn for those pesky household chores then tossed in the wash. Of course, back in the day, a lady wouldn't be caught dead wearing her house dress outside of the house. Sadly, we live in the slobtastic 21st Century...oh, right, this post is about trim, not a sad exploration of the complete lack of style in modern society...
I didn't want to open the pattern package at the store to measure the pieces and calculate the amount of contract fabric needed. I purchased 2 yards for the contrast, which seemed reasonable if cutting the trim on the bias was required. Leftovers will be used for baby quilts and doll clothes.
The contrast fabric is 100% cotton, was pre-washed, in burgundy. The fashion fabric, also pre-washed cotton is an Asian style print. Both fabrics were 45" wide.
Examining the pattern pieces, all pieces except the shoulder straps have straight lines. I decided to forego the bias trim and cut the trim 10 strips, width-wise, 1" wide by 45" long. I used all but one strip for the dress, so if I wanted to make another dress of this style, 1/3 of yard of contrast would suffice.
The contrast trim dress bodice, midriff and shoulder straps were lined and I chose to use self-fabric for the lining. For this post, I used fabric scraps and treat the samples as the dress was constructed.
I pressed the strips and applied them, as needed, to each garment piece. My iron was set to cotton with the steam on.Press the strip in half, length-wise. 
To apply the trim, place the strip on the right side of the fabric, with the folded edge of the trim facing away from the seam edge. The stitching line for this trim application is 1/8" inside the seam line. In my project, I lined the fabric at 1/2" and set the fold of the trim under the left side of the presser foot.
Stitching slowly, I held the trim with my left hand, watched that the garment edge stayed near the 1/2" mark and guided the trim to stay under the presser foot.
The lining is attached to the main fabric, using a 5/8" seam. The trim is sandwiched between the garment and lining.The item is pressed as it comes off the machine, with right sides together.

As I processed my photos, I am mortified at how dirty my ironing board cover is. And baffled as to how it can get so filthy, given that ironing is the only thing that happens there.
The pieces are opened and with right side facing down, the seam is pressed open.
Yes, I'm going to remove my ironing board cover and throw it in the wash as soon as this post is published!
Also, I wash my garments after they're finished. Not because of the ironing board issue, just to make sure it's clean before wearing. Lastly, the wrong sides are put together and the piece is pressed again, working slowly enough to tug the garment/lining away from the contrast trim and steamed in place, but quickly enough to not burn the digits.
For the pockets of the dress, I took my Clover bias tape maker #12 (which requires 1" wide strips, handy!), made a diagonal cut at one end in order to facilitate the fabric through the tape maker.A US 1 knitting needle helped coax the fabric through. I laid the strip along the length of my ironing board. Inserted the tape maker on the right and work to the left. I held the unfolded strip firmly with my left hand and used the nose of my iron to push the tape maker to the left.
At this point, the tape can be used as 1/2" single fold tape. I folded the tape in half and pressed again, for 1/4" double fold bias tape.
I hemmed the top of the pocket as indicated in the directions, then sandwiched the top of the pocket between the folds of the bias tape and stitched. If 1/4" is too cumbersome, you could use it as single fold, though I would probably run two rows of stitching in order to make sure the tape is secure.
Give contrast trim a try. If you're a beginning sewer, look at the line drawings on the back of the pattern envelope, which will act as a guide to where to apply the trim. For the first try, look for straight lines, which will make application easy.
Happy crafting!


















