Cash in Envelopes vs Budgeting Pots: What a Month of Both Taught Me About My Own Spending
Photo by Photo by Vitaly Gariev on Unsplash on Unsplash
I have a confession: I am excellent at setting up budgeting systems and appalling at sticking to them. I've built spreadsheets with colour coding, downloaded three different banking apps, and once made a laminated chart. None of it stopped me from tapping my card for a £4.10 flat white on a Tuesday I'd already decided was a no-spend day.
So in October I ran an experiment on myself. Two methods, one month each — cash envelopes for the first fortnight, app pots for the second — with the same budget, the same income and the same very average discipline. Here's what actually happened.
The rules I set myself
I'd spend only from the method of the week. Cash went into five paper envelopes labelled groceries, eating out, social, personal care and 'bits'. Everything else — rent, bills, travel — left the current account by direct debit as usual. In the pot fortnight, those same five categories became five named spaces in my banking app, funded on payday with automatic transfers.
No dipping into savings. No 'borrowing' from next week. Anything left over at the end of a period went into a separate pot, not back into the spending pile.
My actual monthly budget
| Line | Amount |
|---|---|
| Take-home pay | £2,450 |
| Rent | £875 |
| Council tax, energy, water | £279 |
| Broadband and mobile | £38 |
| Insurance | £24 |
| Travel | £110 |
| Groceries | £310 |
| Eating out and coffee | £95 |
| Social | £70 |
| Personal care | £30 |
| Household bits | £40 |
| Savings transfer | £350 |
That leaves roughly £229 of slack, which in previous months had a habit of evaporating without leaving a forwarding address.
Week one: the novelty of notes
Withdrawing £545 in cash felt slightly ridiculous and mildly criminal. The cashier asked if I was going on holiday. I said yes, which wasn't true.
But the first three days were genuinely eye-opening. Handing over a £20 note for a supermarket shop makes the number feel real in a way a contactless beep does not. By day four I'd started doing something I've never done in my life: putting things back on the shelf. Not because I couldn't afford them, but because I could see the envelope thinning.
The eating-out envelope was the interesting one. It held £95 for a fortnight, which is about £6.80 a day. That is roughly one coffee and one sad sandwich. I started making coffee at home, not out of virtue, but because the maths was visible and finite.
Week two: the friction kicks in
Cash is inconvenient, and that's both the point and the problem. Two of my favourite lunch places are card-only. The bus is contactless. A friend paid for dinner and I had to awkwardly hand her coins the next day, which is a social experience I'd rather not repeat.
By the Friday, I'd also lost a tenner. Genuinely no idea where. It might have been in a coat pocket, it might have been a bakery.
What the cash fortnight did well: my eating-out and social spending came in about £47 under budget, and for once I didn't raid the slack for a Deliveroo on a wet Wednesday. What it did badly: it made bill-paying invisible, because those left the account as normal and never entered my awareness.
Weeks three and four: pots, and the shuffle temptation
Switching to app pots felt like taking off a tight shoe. Everything was instant, contactless, visible on my phone. I set up automatic transfers so that on payday the five pots funded themselves, and bills sat in a separate space untouched.
For the first week it was brilliant. Seeing five little bars, each with a balance, is oddly satisfying. My grocery pot ran out on day nine, which was a useful shock.
The problem arrived on day eleven. I wanted a takeaway. My eating-out pot had £6 left, so I moved £15 across from the social pot without a second thought. No note, no guilt, no friction. Then I did it again on the Thursday. The pot system didn't stop me overspending — it just made the overspending tidier and invisible to future me.
By the end of the fortnight my eating-out spending was back up to its old level. My savings transfer, though, was fully automated and untouched, which is more than I can say for most months.
What the numbers said
Cash came in around £47 under budget on discretionary spending. App pots came in around £12 over. But pots won easily on bills, savings and mental load — nothing was ever late, and the £350 saved itself before I could spend it.
So the honest verdict is that each method solves a different problem. Cash fixes leaks. Pots fix organisation.
Who should pick which
- Choose cash envelopes if your issue is death-by-small-purchase — coffees, meal deals, the corner shop. The physical friction is the feature. You'll need to accept some inconvenience and keep amounts modest; £300+ in the house is worth being careful about.
- Choose app pots if your issue is bills, irregular costs or never saving anything. Pots shine for sinking funds: car insurance, Christmas, a new boiler. Set the transfer for payday and stop relying on willpower.
- Choose both if you're like me: cash or a dedicated prepaid allowance for the two or three categories where you leak money, and automated pots for everything predictable.
The UK's move to contactless has made spending frictionless by design. If you're prone to tapping, adding a little friction back in — a weekly cash allowance, a separate account with a small balance, a pot that requires a deliberate transfer — is doing yourself a favour.
What I'm keeping
Groceries and eating out stay as cash, in smaller amounts, withdrawn weekly. Bills and sinking funds stay in pots. And that half-finished laminated chart is going in the bin, where it belongs.
