Hhmm
Well, since your a mom Cyn, taking a Cooking class would be a good idea. But it's not like you have to prepare a gourmet meal every night. The way I see it you can just teach yourself to cook what they would teach you. Just get cook books and stuff. That's what my mom did and she's awesome

. Plus cooking isn't really a skill, if you know how to cook something you can do it with patience.
Interior Design and Writing will have you learning and having fun at the same time.. I would try one of those if I were you. I think you'd get more out of them rather than cooking.
As for computer classes.. forget that. You don't want to be in front of the computer 24/7. Playing FFXI is enough :P
About the others they just sound boring.. so yea lol