I've made tons of this boxy pouch over the years. You can use it as travel pouch, knitting pouch, toy pouch, etc. Because it needs zipper installation, this pattern is for intermediate sewer. This pattern does not require a serger although I do have a pattern for it as well. I find that the method using without the serger gives the bag a better structure. Below are a few custom order bags I made to be used as knitting project bags.