The Joy of Doing Just One Thing

We wear multitasking like a badge of honor. We answer Slack pings while sitting on video calls, stir dinner while skimming headlines, and draft emails with three podcast tabs open in the background.

It feels productive. In reality, it is exhausting.

What we call multitasking is usually context switching—forcing the brain to constantly dump and reload cognitive data every time we switch tabs. The result isn't more accomplished work; it's fractured attention, shallow thinking, and a lingering sense of fatigue by 3:00 PM.

Single-tasking isn't a vintage luxury; it's a performance strategy. Here is how to reclaim focus without completely rewiring your life:

Ruthlessly close inactive tabs. If you aren't using a tab for the task directly in front of you, bookmark it or close it. Visual clutter invites mental drift.

Work in 25-minute sprints. Set a physical timer and commit to one single objective until the buzzer sounds. No checking notifications, no quick side tasks.

Keep a "distraction ledger." When a random thought strikes ("I need to order more coffee beans"), jot it down on a physical notepad beside your keyboard and instantly return to your task.

Batch administrative noise. Process incoming email and messages at designated intervals twice a day instead of keeping your inbox open as a live distraction engine.

When you allow your mind to dive fully into a single task, the friction disappears. Work stops feeling like a frantic race against a dozen blinking cursors and starts feeling manageable again. Pick one task right now, shut down every competing window, and give it your complete attention.

from collections import defaultdict

# Sample data: pairs of (category, item)
inventory = [
    ("fruit", "apple"),
    ("vegetable", "carrot"),
    ("fruit", "banana"),
    ("vegetable", "spinach"),
    ("fruit", "orange"),
]

# Group items into a list per category automatically
grouped = defaultdict(list)
for category, item in inventory:
    grouped[category].append(item)

# Convert to standard dict for display
print(dict(grouped))
# Output: {'fruit': ['apple', 'banana', 'orange'], 'vegetable': ['carrot', 'spinach']}