You'd think this would be obvious but it's surprising how often I run into source code that doesn't use self documenting names. Many developers will use the shortest names possible. I'm sure plenty of my old code is this way. Some of you may have asthetic reasons for short names. I'd argue asthetics should come after logic and practicality. You're goal should be to write code fast with as few complications and bugs as possible. Code that is easy for others to understand so that they also don't get confused and run into bugs.

Let me attempt to point out some examples of self documenting names and non-self documenting names and the problems they cause.