The Daily Mail leads on an investigation into IVF clinics.
It claims women on low incomes are being offered free treatment - if they agree to give away half of the healthy eggs they produce.
Undercover reporters, posing as a couple unable to afford therapy, say they also uncovered various practices including offers of high-interest loans to cover the cost of treatment, and expensive add-on treatments that carry medical risk.
The Mail notes that although the practices are not illegal staff are supposed to ensure egg donors are acting for altruistic rather than financial reasons.
Fertility regulators tell the paper they will investigate what appear to breaches of industry codes.
The Times says the threat of a mis-selling scandal looms over Britain's car financing market.
Industry experts tell the paper many drivers have been sold loans without having the terms properly explained to them, leaving dealers liable for millions of pounds in compensation.
The Times writes that the Financial Conduct Authority is investigating the industry and has made clear it believes some borrowers - especially poorer customers - are paying too much for credit.
The Sun is outraged that the only gunman to survive the Iranian embassy siege in 1980 now lives on benefits in Peckham, south London. Fowzi Nejad was captured by the SAS after pretending to be a hostage and was released in 2008 after spending 28 years in prison.
The Sun says he cannot be sent back to Iran because of human rights laws.
A friend of the 61-year-old tells the Sun he claims disability benefits for a bad back and lives a playboy lifestyle with nights out in the West End.
The front page of the Daily Mirror says angry Spanish hoteliers are ready to ban British tourists - because of a huge rise in bogus food-poisoning claims.
The Mirror claims no-win no-fee firms have cost the Spanish tourism trade £42m.
Part of the problem, hoteliers tell the paper, is that only receipts for over-the-counter sickness drugs are needed to make a claim.
The Association of British Travel Agents says it has called on the government to step in and accuses claims firms of ruthlessly exploiting legal loopholes.
Labour's deputy leader Tom Watson is to give Boris Johnson a taste of his own verbal medicine, according to the Guardian.
Mr Watson will echo the language of the foreign secretary's attack on Jeremy Corbyn calling him a "caggie-handed cheese-headed fopdoodle" in a speech to union members in Blackpool.
Helpfully, the Guardian defines "fopdoodle" as a fool or a simpleton.
But cheese-headed, confusingly, describes a screw with a raised cylindrical head.
The Daily Telegraph reveals the possible resting place of a 9th Century Anglo-Saxon king who was once the patron saint of England.
Historians say the remains of St Edmund may be buried in the town that bears his name, Bury St Edmunds in Suffolk.
It is believed monks were quietly given permission to remove his body from their monastery when it was desecrated during the Reformation
The Telegraph writes that the most likely destination was a monks' cemetery nearby which now lies beneath a tennis court.
A local councillor says if an excavation takes place it could lead to an incredibly important historical discovery.