Explore each chapter to understand the effort, benefits and context.
This chapter counts hours saved per day, week or year, or improvements in completing tasks on time. It does not convert time into lifespan or money. Where money matters, it offers a calculation rather than deciding for you. Most entries rely on individual studies or aggregate time-use statistics, so grades B and C predominate.
Replace a vague intention with that concrete sentence. Across 94 tests, people using this format achieved goals more often, with a medium-to-large effect. The change is in how you state the plan, without extra spending or much effort.
Decide in advance what result by what date would justify continuing. Pooled research suggests if–then plans can help people abandon failing efforts. The time saved is what you would otherwise keep pouring into them.
Money and time already invested make people more inclined to continue. A review of 98 datasets found this tendency consistently. Count what remains to be invested and what can still be gained; leave irrecoverable past costs out.
Students predicted 33.9 days to finish a thesis but took 55.5; only 29.7% met their own forecast. In another comparison, asking people to recall relevant past experience raised on-time completion from 29.3% to 60.0%.
People rated meetings with advance agendas more useful. In an experiment, seated meetings lasted 34% longer than standing meetings without producing better decisions.
More meetings in a day were associated with greater fatigue and perceived workload. Canceling an unnecessary meeting frees its scheduled duration directly.
People do not automatically unpack a task when estimating its duration. Listing its parts reduces underestimation. Making each part immediately actionable can also reduce procrastination.
With external deadlines, 80.6% of students finished on time; only 38.7% finished within their own forecast. Completion tracked the deadline much more closely than the estimate. For an open-ended task, set and honor a date.
Procrastination is better predicted by task unpleasantness, confidence in success and susceptibility to immediate distractions than by a simple label such as laziness. Make the task less aversive and its first step smaller, instead of scolding yourself into action.
People consume less when the same snack is farther away, with a medium-sized effect. Fewer available options also reduce selection. Rearranging the environment reduces dependence on resisting temptation at the moment it appears.
Rewards pay after success; deposit schemes return your stake and add a reward. Among people willing to accept either, deposits raised success by about 13 percentage points. But only 13.7% accepted a deposit scheme versus 90% accepting rewards, so deposits help only people willing to use them.
The 21-day rule has no basis here. A 12-week study estimated 18–254 days for an action to become automatic. Still finding it effortful after two or three weeks is normal, and missing one day does not reset everything.
Distressing procrastination can improve. Ten weeks of CBT-based self-help worked better than doing nothing, both with therapist guidance and independently. The two active formats did not differ clearly, so a therapist is not always required.
Chinese residents averaged 1 hour 17 minutes of housework daily; among those who actually did housework that day, it was 1 hour 59 minutes. People buying time reported greater life satisfaction, and spending the same amount on time-saving help produced more immediate happiness than buying an object.
Chinese residents averaged 5 hours 37 minutes online daily; among that day's users, 6 hours 3 minutes. The comparable 2018 figure was 2 hours 42 minutes. This is the chapter's largest time category. Cutting one hour daily frees 365 hours yearly.
Americans aged 15 or older spent 2.6 hours daily watching television, half their leisure time. Chinese residents averaged 1 hour 40 minutes, and those aged 75–84 averaged 3 hours 16 minutes. Scheduled information checks can reclaim part of that block.
Most experienced Word users still relied on toolbar icons. In a comparative experiment, shortcuts beat both menus and icons. Learning is an upfront cost with savings on repeated actions; longer use of the same workflows increases the return.
Some longitudinal evidence links longer commutes with lower well-being that income or housing does not fully offset. Cutting 30 minutes each way saves about five hours weekly.