What are some good usability guidelines an average developer should follow? [closed]

Question

I'm not a usability specialist, and I really don't care to be one.

I just want a small set of rules of thumb that I can follow while coding my user interfaces so that my product has decent usability.

At first I thought that this question would be easy to answer "Use your common sense", but if it's so common among us developers we wouldn't, as a group, have a reputation for our horrible interfaces.

Any suggestions?

Answer 1

Source: http://stuffthathappens.com/blog/wp-content/uploads/2008/03/simplicity.png