In trying to add ridged texture, I first used the front stitch double crochet (FSDC) with these warmers, and became immediately in love with the stitch. 
How to do this stitch and how it is different from the front post double crochet (FPDC)? 
 

 

For the fsdc, you obviously do not work the post, but the actual stitch. You yo, insert the hook up front through the stitch, yo again and dc1. The photos above show the back of the sample, but once you are done working all the stitches, the front gets a nice ridged look (photos below).
For the sample I also used the bsdc (back stitch double crochet) for the next row – it turned out interesting but not as to make me flip out.
 

Now, in the picture above you can see the obvious difference (the lighter color sample was made using FPDC and BPDC). The FSDC makes the stitches amazingly neater and straight(er), while with the FPDC they tend to droop down, thus creating a greater and deeper gap between this and the next row. 

Also the BPDC makes the stitches smaller (picture below), while the BSDC makes them longer. 

All in all, I am intrigued to see how this stitch combines with other textured stitches and I cannot wait to use it more.

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