I sell it, amongst other things. Though it's unlikely you'll need a whole roll unless you want to insulate part of your house - well it is winter, you should keep an eye out on the building sites for some foil backed blanket. They all ways seem to throw heap's out.
I use on of those foil windscreen sunshade things and an occy strap!...cheap ones are $2 but they are too flimsy...I spent about $6 and got a good one! Not as insulative as other more expensive material but effective..My keggle drops about 1.5 deg over an hour brewing on a cold night in Geelong...good enough for me!