I think how clearly you write and comment can matter just as much. I'm proud to say I've had situations where people with near zero programing experience were a

I think how clearly you write and comment can matter just as much. I'm proud to say I've had situations where people with near zero programing experience were able to make some quick changes to get programs I'd written in perl working again following sudden changes. I think the more you know the easier it gets, but a reasonably capable end user with little to no experience in programing can surprise you if you take the time to try keeping things as easy to follow as possible. I do it because I can't trust myself to remember what I was doing even with projects completed only a few months ago.