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 special container that I received one Christmas, it is a limited edition Tia Maria carrying case, it is long with a metal lid on it meaning I can carry all my hooks (including tunisian!!). If I find the online picture I will update - but I recommend these types of carrying cases although meant for alcohol they are perfect for carrying hooks & tools also!!