Most designers are fully aware of what a great resource Subtle Patterns is. It's without a doubt the industries go-to-resource for royalty free tile-able background textures. For novice users, these images are perfect for sections of your theme that allow you to upload a background that you can set to repeat. Subtle patterns has a lot of great features, like sortable textures, a search feature, thumbnail and list views, and a preview feature that instantly set's the site's background to that texture. Use the link below to pay them a visit and find your new background.