I used to have a shopper bag, which I bought years ago because it was large enough for my boxes of photografic paper. I ended up taking it everywhere. Recently, after years of faithful service, often being used to transport groceries or large quantities of fruit and veg with some fabric thrown in for good measure (the market run...), it gave up the ghost. I used its measurements to create this bag and spiced it up with red lining and band patches (the largest one is home made, from a picture I took of my boyfriend's band)

canvas, cotton