diff --git a/files/bashrc b/files/bashrc
index d770843..d3f10e4 100644
--- a/files/bashrc
+++ b/files/bashrc
@@ -7,7 +7,8 @@ while read -r f; do [ -f "$f" ] && source "$f"; done <<EOL
 EOL
 unset f
 
-stty stop undef # Prevent ctrl-s from freezing the terminal.
+# Prevent ctrl-s from freezing the terminal.
+stty stop undef
 
 shopt -s cdspell checkwinsize globstar histappend nocaseglob
 set -o noclobber    # Prevent overwriting files with output redirection.
@@ -19,6 +20,7 @@ HISTSIZE=
 HISTTIMEFORMAT="[%F %T] "
 HISTFILE="$XDG_DATA_HOME/bash/history"
 
+# Prompt configuration.
 Reset="\[$(tput sgr0)\]"
 PS1_EXIT="\[$(tput setaf      "$Red"    )\]"  # color for last exit code if non-zero
 PS1_ROOT="\[$(tput setaf      "$Orange" )\]"  # logged in as root
@@ -57,11 +59,12 @@ __ps1_set() {
     PS1="${ps[0]}$extra$sep_color ${prompt:0:$SHLVL}$Reset "
 } &>/dev/null
 
+# Source extra configurations if available.
 _source_extra_configs() {
     local configs=(
         /usr/local/etc/profile.d/bash_completion.sh
         /usr/share/bash-completion/bash_completion
-        $LOCAL_CONFIG/bash/*
+        $HOME/.local/etc/bash/*
     )
     local f
     for f in ${configs[@]}; do [ -f "$f" ] && source "$f"; done
diff --git a/files/profile.sh b/files/profile.sh
index 41fd66d..79a8368 100644
--- a/files/profile.sh
+++ b/files/profile.sh
@@ -1,10 +1,12 @@
 #!/bin/sh
 # Environment variables are set here for login shells.
 
+# Keep things organized.
 export XDG_CACHE_HOME="${XDG_CACHE_HOME:-$HOME/.cache}"
 export XDG_CONFIG_HOME="${XDG_CONFIG_HOME:-$HOME/.config}"
 export XDG_DATA_HOME="${XDG_DATA_HOME:-$HOME/.local/share}"
 
+# General environment settings.
 export INPUTRC="$XDG_CONFIG_HOME/readline/inputrc"
 export LANG="en_US.UTF-8"
 export LANGUAGE="en_US"
@@ -13,7 +15,6 @@ export LC_CTYPE="en_US.UTF-8"
 export LESS="-i -j.49 -M -R -z-2"
 export LESSHISTFILE="$XDG_DATA_HOME/less/history"
 export LESSHISTSIZE=1000
-export LOCAL_CONFIG="$HOME/.local/etc"
 export LOCAL_PREFIX="/usr/local"
 export PAGER=less
 export PYTHONSTARTUP="$XDG_CONFIG_HOME/python/startup.py"
diff --git a/files/zshrc b/files/zshrc
index eb77912..284c437 100644
--- a/files/zshrc
+++ b/files/zshrc
@@ -1,13 +1,15 @@
 #!/bin/zsh
 # Set up zsh for interactive use (options, prompt, aliases, etc.)
 
+# Source additional configurations if available.
 while read -r f; do [ -f "$f" ] && source "$f"; done <<EOL
     ${XDG_CONFIG_HOME}/shell/aliases
     ${XDG_CONFIG_HOME}/shell/solarized
 EOL
 unset f
 
-stty stop undef # Prevent ctrl-s from freezing the terminal.
+# Prevent ctrl-s from freezing the terminal.
+stty stop undef
 
 # Save a lot of history in the cache directory.
 HISTFILE="${XDG_CACHE_HOME:-$HOME/.cache}/zsh/history"