I've made the Kittyville toque from SnB and want to make the Jellybean toque with the cables, but am having a problem with all my knitting projects, especially toques. While the Kittyville toque turned out looking great, since it's knit with worsted weight, it's just too thin and flimsy to be of any real use in a Canadian winter. Right now, it's more of a "style" toque than functional.
Okay, with that explanation out of the way (!!), how can I make my future knitted toques thicker and warmer? Double up the worsted weight? Switch to a thicker yarn? If I do either of these ideas, do I decrease the # of stitches that I cast on? If so, by how much???