Silence distracting sounds.
It's impossible to stay on task when every new email, text, and voicemail makes a distracting noise. Unless you're expecting an important message, turn off notifications and switch your phone to airplane mode. If you work in a busy office, wear headphones. "It's a knee-jerk reaction to want to hear other people's conversations and understand their thoughts and feelings, so do whatever you can to shut yourself off from outside noises," Rock says.