I understand that not everyone lives the same kind of life, so have a look at this - it's full of seemingly inane or useless skills some consider basic life skills: http://www.amazon.com/The-Modern-Gentleman-2nd-Edition/dp/16...

I'm interested in these things because I can't predict the future, but like to prepare for it. Also because knowing how to mix a drink or who composed Peter and the Wolf makes for interesting conversation with people I naturally feel comfortable around. Each to their own I guess.