10. Other Habits

This is a small list of other things to consider when writing code

Superfluous whitespace in the source.
- For vi users, adding
```
syntax on
let c_space_errors=1
```
  should help.
- In Emacs, set the variable show-trailing-whitespace (also see whitespace.el).
Replace blanks with tabs. Because a tab character equals 8 spaces, numerous spaces should be replaced by tabs.


9. Comments