I've wondered before about the benefits of ambidexterity, and decided to make it something I work on more in 2010. This year when I was wrapping Christmas presents, I saw some old tags I'd written out left-handed after the bite two years ago. It was a little distressing seeing them, looking like they were written by a 5-year-old, and recalling how difficult it had been to do even that. It's bothered me enough that I want to feel competent with both hands.
After I got bitten, I had to use solely my left (non-dominant) hand for some time...it was awkward, but I got better at it. I don't know how that affected brain at the time, having just experienced trauma and then suddenly switching dominancy for a while. I've thought perhaps it delayed my reaction to it.
My therapist has recommended since then that I journal left-handed and just let the words flow, as Bonnecanyon suggested. I did it once, but never went back to it...I think because I felt so frustrated at my hand not being able to keep up with the flow of thoughts. So, this year, I will be working on developing various competencies with my left hand, although not to the exclusion of my right. Could be interesting.