I intergrate old clothes all the time too. I have used old sheets, pillow cases, you name it! I especially liked it when I got my embroidery machines because I could dress up old stuff some more! Especially when making baby quilts, there are tons and tons of designs for babies. And people are always throwing away buttons, I have mason jars of buttons that people were just throwing away. It amazes me at the things that people just think is garbage and you can give it a new life. My only problem is that I have to be careful not to collect too much stuff due to space restrictions.