I carry a portable sewing kit a friend crafted for me in 1983. It's made of soft cotton, stitched with red and turquoise yarns, and it contains an assortment of buttons, threads, and needles.
My friend folded a Canadian dollar bill into one of the compartments, and it's still there in case of an "emergency." But the Canadian one dollar bill was replaced by the "loonie" in 1987, 28 years ago. I'm not sure the bill is still legal tender, but I still carry it anyways.