Martin Lewis: Is it unfair to charge loyal customers more?

Should loyal customers be charged more than new ones? On the surface the answer is a simple no – but nothing is that simple. Many consumer marketplaces function because only some people embrace competition, and we need to work out what happens if we change that.

Martin Lewis – Warning: Energy price comparison savings are WRONG due to the price cap – and how it needs to be fixed

The new energy price cap (following on from the prepay price cap) for millions of customers on a standard tariff will begin on 1 January 2019. It's already been wrongly reported, but there's a bigger worry that it will make the savings on comparison sites wrong.

Martin Lewis: Are you an overdraft prisoner? How to escape it

The old adage – that banks will lend you an umbrella when the sun shines, and ask for it back when it rains – feels like a modern reality for many with overdrafts. 

Martin Lewis: How much should you save for your kids to go to university? (VIDEO)

This is a warning for parents of all teenagers. Now over 50% of our young people go on to university. And while you commonly hear that you don’t need to pay for that upfront, it’s no longer true - there is a hidden parental contribution.