Time to update your design resource library! It's always good to keep it filled with all of the latest goods found around the web.
A cool texture will pimp your designs for sure... and from time to time, we find the best resources so that you don't have to do it. Also, if you got plenty textures, you may practice a lot, trying different styles of texture, from wood to rock, and other stuff.
And these are pretty handy. And of course, that are a lot more in DeviantART. I hope you enjoy these! Cheers! ;)