I am in several crochet groups on Facebook. I often see people posting questions regarding how to add a border to a C2C blanket. I thought I'd give a quick tutorial on how I add my borders. Here is an example of a baby blanket I finished using the method below.
Before you begin, you will need to choose which color(s) you will use for your border. In this example, I made the square white, and I would normally have done the first round of the border in white (or whatever the main color is) as well, but I used green for contrast.
First round of border:
Second round of border:
Once you complete the second step, you can finish with whatever edging you'd like. There are many options. I prefer to work with a scalloped edge. In the pink and gray striped blanket at the top, I followed the "Large Shell Edging Instructions" from this website: http://www.how-to-crochet-instructions.com/crochet-shell-edging.html. When I got to the corner, I worked 10 tr to turn the corner and continued working around. There are countless other edgings you can add, just do a simple search for crochet edgings and go where your imagine takes you. :)