I make dirt. But first I make dinner. Then soup. Then dirt.
How? First I freeze all my vegetable trims (a bit of lemon and lime rinds and fruit peelings can be tossed in as well) while I cook. When I have a bag full, I fill a big pot half full of water and light boil the trims for an hour or two, adding water as needed. Voila, nutritious, tasty broth. All that's left is to take the leftover vegetables out to the composter and I've got new dirt.
What does this have to do with writing? Simple. Reuse, recycle and then it's renewed. Stuck in your novel? Pull a character and write a short story. Short story is way too long--maybe it's a novel. Try using your characters/ideas/plots in a new genre. Write an article about what you learned. Need to research something for your novel? Research it for an article as well. How about a blog post?
It goes on and on. Painters have been doing this for a long time, scraping off parts of oils they didn't like and redoing. Or reusing the same canvas. Or cutting the canvas into sections (my dad did this and it worked).
So, recycle, reuse and find it renewed.
How do you do this in your creative endeavors?