I have an eyeglass case, one of those tubular types that are sold with those inexpensive readers. Someone gave it to me about 10 years ago. I don't keep all of my hooks in that because I have too many, but it is perfect for what I need to carry in my tote bag. I am mostly a knitter, but I also crochet, and a hook is essential in case you drop a stitch and are away from home.
I have a seven section pencil case that I keep mine in. If anyone would like to see it I am more than happy to take some photos tomorrow in the day time and post them on here. It makes life so much easier having them this way