I'm sure first thing that comes to mind is a rag... good use, but there are lots more. I mean, if the shirt is so badly gooped up then not even sure it would work for a rag. And then there's the t-shirt quilt which is a great thing and I am planning out one now, is pretty labor intensive. Good Garbage Gab is all about getting you thinking and giving you easy ways you can start reusing things around your house. So, no t-shirt quilt instructions here today.
The first thing I ever did with an old t-shirt was make a grocery bag. This is so simple. All you need is a sharp pair of scissors and the simplest of sewing machines. You can sew them by hand, it just takes a bit longer.
Turn the t-shirt inside out and lay it flat. Pin the bottom. Sew with a good tight stitch all the way across to close the bottom of the t-shirt. I generally line up and sew just at the seam for the original hem.
Then cut the sleeves off at the seam. Then you can just eye the next part, or you can use a round plate or bowl to mark the rounded cut you will make at the neck. The part of the shoulder that is left are your handles.
Turn it right side out and there you have it. A reusable bag. I take these to the grocery, carry my lunch in them, and have even used one as a purse (vintage, way too small, I'm A Pepper t-shirt). I even took the sleeves and made little drawstring bags to store them in.
I also made some scarves, even a no-sew one. But I have to find those pictures lost on another computer that is currently down. I will try to find the right thumb drive I have them backed up on and will post another time. Maybe as we get closer to Christmas and you are looking for a last minute gift for someone!