How to type on a keyboard. I don't think you have to have perfect touch typing, but you should be 30 words per minute at the very least.

The other one is testing and debugging. Something I'm always trying to do better, personally, but whatever you do, understanding both the process of debugging, but also the though process (edge cases, common issues, breaking problems up into sub problems, etc.) is important.

It's hard to talk about generic skills for computing though. There are many useful skills I have, but I'm not sure they cross domains.