I run the UK’s biggest bank, here are five ways to manage your money

Nunn says the key to building up savings is to automate putting money aside.

This means regular saving will stop being a decision or action you have to keep taking – and putting off.

“If you’re able to carve out a little bit and put it somewhere else where you won’t have access to it and be able to spend it, I think that’s the easiest way to start having a saving mindset,” he says.

That could mean setting up a direct debit from your current account to a savings account, organising cash into different envelopes or using round-up tools that put spare change aside when you spend.

Nunn recommends “saving little, saving early and saving regularly”.

He admits he “hates budgeting and always has” so he says he looks at his current account as soon as he gets paid and decides how much he wants to move into savings. “Do it as soon as you can,” he adds.

As well as savings, he recommends having an emergency fund for surprise bills like a broken boiler or car repairs. How much you need in the fund depends on your circumstances but he advises having one to three months’ salary set aside if you can.