Nowadays I am more of a developer than a designer though I love doing both. A few days back I tried coming up with some designs as required by clients but I was always stuck and not liking the things I did. I turned to the internet and I found this cool link that talks about 100 sites that can help you come up with just the best designs. Even if your brain is tired it will be inspired by simple looking at these sites.
check out the link and if you got a better way a designer like me can search for inspiration please post it as a comment.