Keep headers/logos under 125 pixels high. It takes up valuable viewing space, especially for laptop users, that is best left for the good stuff to appear"above the fold" Take a cue from the big companies, simple logos done well say it all. This is our #1 pet peeve - screaming logos and headers!
Cloning your site is another level in clean hacked wordpress site that can be very useful. Cloning simply means that you have backed up your site to a totally different place, (offline, as in a folder, so as not to have SEO issues ) where you can get it in a moment's notice if necessary.
There are many ways to pull off this, and a lot involve re-establishing databases and much more and FTPing files, exporting and copying. Some of these are very complicated, so it's important that you go for the one that is right. Then click here to find out more you may want to check into using a plugin for WordPress backups if you are not of the persuasion that is technical.
I don't think there is a person out there that after learning just how much of a problem WordPress hacking is that it is a good idea. However is that when it comes to securing their sites, bloggers seem to be stuck in this state that is reactive.
As I (our fictitious Joe the Hacker) know, people have way too many usernames and passwords to remember. You've got Twitter, Facebook, your online banking, LinkedIn, two site logins, FTP, internet hosting, etc. accounts that all come with logins and passwords you need to remember.
The plugin should be updated play nice with all your plugins to stay current with the latest WordPress release and have WordPress cloning and restore capabilities. The ability to clone your site (in addition to regular copies ) can be useful if you ever need to do an offline website redesign, among other things.