# 1. Variables in consistent case (all lower or all upper)

# 2. Each dictionary word in the variable name separated 
#    by underscore, unless accepted as one word by usage as 
#    in 'username' or 'logout'

# 3. Package variables in all caps, used for things like 
#    config values
use vars qw(
	$FOO
	$BAR
	$BAZ
	$FOO_BAR
);