I am finding that the metaphorical road to a thousand rehabbed crochet squares is a lot like any road that must be traversed. There are unexpected twists and turns with completely predictable delays that can’t be predicted. It is not an “as the crow flies,” sort of journey, it is, instead one with a winding road that often takes me to crochet byways.
One of those byways are the scraps that such a project generates. Fortunately I have a project that can use those scraps — a crochet ripple afghan that I began work on in July of 2017:

At the time I stopped work on the project for two reasons.
One: It was time to get ready to work on my annual state fair project
Two: I was out of yarn scraps
Lucky for me, the winding road of a thousand rehabbed crochet squares is littered with yarn scraps, and in addition to the center scrap yarn ball that I recently assembled with the ends of some crochet remnants I had recently rehabbed, I found the scrap yarn balls pictured on the left and right while looking for a particular color of yarn:

which I combined into one scrap yarn ball:

That, in turn, let me to look for a crochet remnant had gone missing. I knew that it had to be near, but it wasn’t until I selected a substitute crochet remnant and gave up looking for the one that went missing that I found it:

Hook in hand and stash at my side, I got to work, and soon, the one-round granny square was soon transformed into a five-inch crochet square for Project Amigo:

Having dispatched that remnant, I selected nine more remnants for rehab some of which I had come across while looking for a suitable substitute remnant:

and before the sun set on the day, I managed to transform four of the remnants into five-inch squares:

I don’t know how many twists and turns lie ahead of me on the road to a thousand crochet squares, but I will enjoy each stitch along the way, and if you find yourself with some short scraps you want to use for something, here is a video I made of the method I use:
I have been following you for a long time and throughly enjoy your posts. I have a large sack of scrap pieces of yarn to start a scrap ball but don’t know what kind of knot to use to join them. Could you share how you join all the scrap pieces togethrt? Thank you.