I finished my scrap rag rug this morning so I'll show you just two more small things you need to know (not that you couldn't have figured them out yourself) as the last steps to making your own crocheted rug.
Decide where you want to end your rug. I chose to put an all-blue border as the last round of my rug.
So I single crocheted right up to the starting blue single crochet.
Then I cut my fabric strip leaving about a 6" tail.
Next I'll put my hook through the starting blue loop, the one my left index finger is on in the picture above.
Hook is through that loop.
Hook your fabric tail and bring it through that first blue loop.
And then continue pulling the fabric right on through the top loop of the last single crochet you made. (The one that was on your hook.)
Continue pulling that 6" tail all the way through the loop.
This forms kind of a slip knot. Pull it tight.
Now we're going to flip the rug over and weave in that tail over and under any stitch loops you choose on the wrong side of the rug. (We're looking at the wrong side of the rug in the above picture.)
Weave it in and around through loops until you have only a small length of the tail left. Snip it off with scissors.
Now is the time to deal with the tail you've had on the back of the rug since first making the chain stitches we started with.
Weave this tail in on the back of the rug in the same way you just did the ending tail. Hidden and gone!
Then I took my rug to the ironing board and gave it a good steam pressing to coax it into a nice oval shape and to flatten any lumpy and bumpy sections.
Here's the finished rug. Final measurement is 23-12/" x 34-1/2".
I'm very happy with the way this "no rhyme or reason", scrappy colored rug turned out. I hope you'll be pleased with yours, too.