I am one of those IT 'experts' that sit in the basement um... office and type away. I do a lot of web development work for charities but it don't pay the bills. I branched into building blogs for people who have stories to tell but can't/won't/don't know how to set them up. I have one right now in progress that is for a lady who wants to write about her life underground running from her crazy husband. No one would do the work because they are afraid the guy will find them.
I am sort of a writer, not good as I want to be but I do do work for others who want to be writers but don't want to learn or put an effort into (ghost writing). I do technical stuff, reviews (a lot of them and starting to do them for my sites) and of course political stuff. Like I said I am not good as I want to be so I do have a person who is my editor and behind all good writers are editors. She is an editor at Simon and Schuster and has been a great help.
And then I am a wood butcher, more or less an artist at it. I have a line of Harley wood products I give to two charities to sell when they have their sales and really seriously thinking about doing that part time in the truck. Harley was one of the worst companies I worked with on the use of their logo and because it is for charities, they contracted with Harley to use it at no cost.
Sorry, I get carried away..... it is not dual careers but many.