The only thing I don't like about blankets is sometimes they are not warm enough, so I like to do the quilt mod. to them. Take two thin blanket or a blanket and some thin strong fabric and sew them on three edges. Then sew them lenght wise to form tubes. That way if the blanket is'nt warm enough you can take the warmest loose insulation that hand, like cattail down, grass,rags, foam,newspapers ect. stuff the tubes ,roll the open end down and secure it with the blanket pins Chris mentioned and if you have to travel just dump it so its easy to carry and refill it latter.