Not sure how I came up with this name but I like it.
# Make sure aliases are expanded when using sudo.
alias sudo='sudo '
+# Redirect stderr to stdout.
+alias -g E='2>&1'
+
# Simplify calls to less, automatically redirects all output.
-alias -g L='2>&1 | less'
+alias -g L='E | less'
# Simplify calls to colordiff, output is also piped through less.
-alias -g D='2>&1 | colordiff L'
+alias -g D='E | colordiff L'
# Simplify calls to grep.
alias -g G='| grep'