Added oh-my-zsh in all its glory

.oh-my-zsh/plugins/last-working-dir/last-working-dir.plugin.zsh

@@ -0,0 +1,25 @@
+# Flag indicating if we've previously jumped to last directory
+typeset -g ZSH_LAST_WORKING_DIRECTORY
+
+# Updates the last directory once directory is changed
+chpwd_functions+=(chpwd_last_working_dir)
+chpwd_last_working_dir() {
+	if [ "$ZSH_SUBSHELL" = 0 ]; then
+		local cache_file="$ZSH_CACHE_DIR/last-working-dir"
+		pwd >| "$cache_file"
+	fi
+}
+
+# Changes directory to the last working directory
+lwd() {
+	local cache_file="$ZSH_CACHE_DIR/last-working-dir"
+	[[ -r "$cache_file" ]] && cd "$(cat "$cache_file")"
+}
+
+# Jump to last directory automatically unless:
+# - this isn't the first time the plugin is loaded
+# - it's not in $HOME directory
+[[ -n "$ZSH_LAST_WORKING_DIRECTORY" ]] && return
+[[ "$PWD" != "$HOME" ]] && return
+
+lwd 2>/dev/null && ZSH_LAST_WORKING_DIRECTORY=1 || true