I like to go junk shopping and you can find second hand clothing with recycle appeal! I look for dresses or skirts that are made from 100% cotton. I prefer small to tiny print for what I do but there is alot of yardage in a larger size dress!! :)
I check out my local Salvation Army etc and you can spend about $3-$4 on a larger size dress or skirt and end up with a yard or more of usable fabric after you take the garment apart.
Yard sales are an obvious choice but if you are not a yard saler it may not have crossed your mind.
I also tell everyone I know that I am open to handme downs of anything cotton. Fabric or clothes etc. Aprons are a resource in junk shops and
I sometimes find cotton sheets or other bedding that is 100% cotton that I can use in my quilting. I once found a lap size throw that was made out of one of my favorite fabrics. There was at least 3 yds of fabric there for about $5
If you are wanting to make a jeans quilt I looked for jeans at yard sales and I gave 50 cents for most of my jeans and I found a jean dress and a nice jean skirt with lots of fabric in it. I never gave more than a dollar for any of it.
Try recycling from these sources and save MONEY! :) :)
Remember you can get a deal on items that show damage but if you are going to cut it up you won't care about the damage!! Just use the parts of the item that isn't damaged!