37 Hours. That’s What Your Supermarket Steals Every Year.
You think you are shopping. You are paying with time you will never get back.
It is not the money. It is the attention. And unlike money, you cannot earn it back.
The average family spends around 43 minutes making decisions inside a supermarket each week. Not walking. Not queuing. Not paying. Deciding. Comparing. Picking something up, putting it back, picking it up again.
Multiply by 52 weeks.
That is 37 hours a year. And that is the floor. The most conservative version of this number — one person, one weekly shop, nothing else on the pile.
Now add the rest. The Tuesday evening scroll through Amazon looking for a rice cooker you do not need. The fifteen minutes comparing two nearly identical coffee brands on Ocado. The Sunday wander through Lidl’s middle aisle, not because you came for anything specific, but because retail marketing is designed to pull you in and walk you slowly past every option it has — shelf placement, loyalty card algorithms, the deliberate choreography of putting essentials at the back, peeling your attention layer by layer until an hour is gone and you are standing at the checkout with things you did not plan to buy.
Then Instagram. One thumb, one swipe, one targeted ad at a time. Products you did not know existed thirty seconds ago, now living rent-free in your head. That is not browsing. That is your attention being harvested at scale, repackaged and sold back to brands who want thirty more seconds of your consideration.
37 hours is what the grocery shop costs alone. Nobody has honestly counted the rest. What that depletion does to everything that follows — your decisions, your relationships, your capacity to be present — was documented in a courtroom.
Research by Baumeister and colleagues on ego depletion established something important: focus and willpower draw from a shared resource, and that resource depletes with every decision made.1 The coffee aisle. The rice section. The oils. The scroll. By the time you arrive home, you have spent real cognitive energy — the same energy you need for the things that actually deserve it.
Think about what that time is actually worth.
Enough to learn something. Build something. Have the conversations you keep postponing. Be present with the people around you instead of half-present, mentally still somewhere in aisle seven.
The question worth asking is not which coffee to buy. It is how much of your life you are willing to spend asking it.
1 Baumeister, R. F., et al. (2023). Self-control, limited willpower and decision fatigue. Internal Medicine Journal. See also Baumeister, R. F., et al. (2024). Self-control and limited willpower: Current status of ego depletion theory. Current Opinion in Psychology.
