Compare buying time with buying things
Compare the price with what the released time is worth to you, including rest. Spending to save time is an option to assess, not an instruction to outsource everything.
Compare a time-saving service with your own time cost before choosing what to buy.
Buying time brought more immediate happiness than buying material goods in the cited experiment.
Why consider it?
The cited research linked time-saving purchases with greater life satisfaction and compared spending on time-saving services with material purchases in an experiment. The book gives no numerical effect size for that experiment and does not quantify hours saved. Choose only spending your budget can accommodate; the experiment does not validate outsourcing whenever a service costs less than your hourly wage.
Read the sources
Source grade B is reproduced from the original work. It does not establish suitability for everyone.
Original item: chapter 4, item 14 ↗Adaptation: Rewritten in English from the locked Chinese original; omitted Chinese time-use statistics and their source. Effect sizes quoted from the cited source: no numerical effect size is reported in the book; retained the experiment's qualitative comparison without inventing time saved.
Make space for a practical habit.
Add this idea to your local checklist.