The biggest reason many of us require to edit themes is to add JavaScript libraries, CSS codes or analytics tracking code. However, the problem with editing themes is that you will lose all your customization when you decide to change your theme or redesign it. Most analytics software do provide users with plugins to insert code into themes, but why use plugins to insert simple HTML code into your theme?
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Weblog Tools Collection: Footer Stuff Allows You To Seamlessly Add Content to Themes
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