Here's a hint if you're feeling the need to rest: Play a few games of Klondike!
I've found that, when writing ideas stop coming to me, the best thing to do is to give myself something mindless to do. Klondike is perfect for that: it's challenging, yet the type of game that you know almost instinctively how to play. This gives you a chance to let your mind work on something more challenging, like what to write for your next post. For an added boost, put on some instrumental music or white noise to quiet the voices in your head.
Don't have a card deck nearby, or don't have a Solitaire program on your computer? Try World of Solitaire. You can play right in your browser. And if Klondike's not your thing, there are hundreds of other solitaire games you can play there.
Only one thing: don't forget to stop and come back to the writing. Okay? Okay!