People think it’s impossible but it’s not. Do this one simple thing: Pack up all the work you want to get done… computer or paper and leave the office. Go to the cafeteria or a kopi tiam (coffee shop) where people don’t know you and work.
Why does this work? Simple. You eliminate the interruptions and distractions of uninvited guests stopping by for a chat and the phone ringing to ask you questions that most of the time, they could figure out on their own or find online. This only works if you switch your phone off for 90 minutes or more so you can focus on your work.
For most people (not all), working in a new environment with background noise keeps them awake and they can tune out the background noise and focus on the work they brought along better than in their office. You typically get some fresh outside air which also helps to keep you alert and the constant flow of coffee or tea helps to stimulate you physically and boosts your cognitive skills as well.
Try it and see if it works for you. Many top leaders have done this for years and to get more work done, you simply have to leave ‘work’.