I can write backwards, though my cursive is prettier if I write it with my nondominant hand. My biggest problem is remembering which way is backwards if I try to write that way - it helps if I'm looking at other writing in a mirror or from the back of the paper at the same time. This wasn't necessary when I was 10 or so, I remember playing with writing direction a lot when I was bored with the concept of classwork in 5th grade.

I've always been able to read any which way as easily as forward and right side up. Somehow this freaked teachers out who already knew I was 4-5 years advanced for age. It's like I suddenly went from advanced angel to diabolical devil child, because I had a skill they hadn't managed by adulthood or even imagined existed.