I have the worst fine motor skills, however, I have always wanted to learn to sew. It would be really neat to make my own cloth diapers, fix clothes and make Halloween costumes.
Even just fix a pocket or add buttons. My fiance can sew. He has fixed my coat pockets before. He is also able to fix stuffed animals that have come apart. This is actually a really useful skill.
The other thing i would like to have is gardening skills. I really want to grow a vegetable garden. Garden fresh vegetables are amazing! Additionally, it teaches kids where food comes from. Then you can always, freeze, can or sell the leftovers. It is a great practice, plus it gets you working outside with nature. What skills do you wish you had?