Change Your Venue
Even if you have a dedicated home office, you'll probably get antsy. If you can move around the house without inviting distractions, do. Work at the kitchen table for a while, move to the couch with a lap desk, take it to the porch if it's warm out and there's no glare on your screen.
Work from bed at your own risk. Famous authors like Collette, George Orwell and Marcel Proust could pull it off, but you'd better be wholly absorbed by your work. A boring project could easily become a snoring project.
If it's possible, you can always head to a local coffee shop to work. Some people like the sound of people in the background while they work. Research backs them up: A report published in 2012 showed that a moderate amount of background noise can enhance creativity. If you can't visit your favorite barista, however, there are apps to mimic the sounds of a coffee shop or provide whatever kind of noise fires up your brain cells.