Thirty Days Buying Nothing New: The Two Weeks That Mattered Were Three and Four

I did a thirty-day no-buy in February — nothing except food, existing bills, and genuine replacements for things that broke. It saved £412, which is roughly what I expected and is not the reason I would do it again.

The first two weeks were easy and, I now think, largely uninformative. There is a novelty to a constraint like this that does a lot of the work: it is a game, you are winning it, and the things you are declining to buy are things you did not particularly want anyway. If I had written this piece on day fourteen it would have been an enthusiastic and fairly useless article about willpower.

Week three is when it got interesting, because that is when the first thing I actually wanted came up. A set of brushes, £46, for a job I had coming. I had a rule and the rule said no, and the argument I had with myself lasted two days and was entirely about whether this counted as a work necessity. It did not — I had brushes, they were worn but usable — and what I noticed was the sophistication of the case I was constructing. I had four separate justifications ready, and I had not consciously assembled any of them.

That is the thing I took from the month and it is not about money. Under a constraint, my mind produces reasons at a rate and quality that it does not produce them otherwise, and those reasons are not available for inspection while they are being produced. In ordinary conditions, when there is no constraint, I do not notice this at all — the reason simply arrives and I act on it and call it a decision.

Week four produced the second useful thing, which was a category I had been unable to see. With nothing being bought, I could tell what I actually missed, and the answer was almost nothing on the list of things I had expected to miss. What I missed was the buying — specifically the twenty minutes of browsing and comparing that precedes a purchase, which I had always understood as a cost of buying and which turns out to be, for me, something closer to a leisure activity. Two evenings in week four I found myself browsing with no intention to buy, which under normal conditions would simply have been shopping.

Having named that, I have stopped pretending my research is diligence. It is enjoyable, and it produces purchases as a byproduct, and those are two separate things that I had been treating as one.

After the month I did buy the brushes, in March, and they were fine and I have used them. So the £46 was not a saving, it was a delay, and I suspect a decent fraction of the £412 was the same. If I were judging this experiment purely on money I would call it about a £150 saving with an unpleasant month attached, which is a bad trade.

Judged on what it showed me, it was worth it, and I would suggest anyone trying it plan for thirty days rather than fourteen and expect the first half to teach them nothing. The constraint has to outlast the novelty before it starts producing information, and the information is about you rather than about your spending.