Whenever I begin developing a new WordPress site online, my first step is to install this plugin. With just a few clicks I can keep the rest of the world out while I quietly shape and mold the new site to my liking. Once it's ready, I can unveil my new creation to the world with a single click.
Other "Off-line" and "Under Construction" plugins try too hard to do too much. I prefer simple and effective, which is what this plugin offers. Thanks Jeremy!