In a new post from SitePoint's Server-Side Essentials blog today, Abbas Suterwala talks about something that could save you and your WordPress website in a pinch - a simple backup of everything.
No matter how much you trust your hosting company, disasters happen to everyone. You might also decide to change hosts, in which case you’ll need to migrate your WordPress installation. In either case, you should have a full backup of your WordPress database and files from which you can easily restore, without losing any important data.
He shows two different ways to get the job done - one, doing a manual backup, is a bit more complicated than the other method, using plugins to help out - but they both end up with the same result. For each method there's detailed instructions and screenshots (as well as links to the two plugins they chose to use).