Octopus Energy was only set up in 2015 but has shaken up the energy market. Its website boasts of being the UK's "most awarded energy supplier" and promises cheap, renewable energy for households.

It's no secret that cheap and convenient supermarket food is often bad for you - but what we're not told is how large parts of the food industry have been engineered to keep you eating it.

You'll earn 6% back at U.S. supermarkets on up to $6,000 a year in spending, plus 6% back on select U.S. streaming services and 3% back at U.S. gas stations and eligible transit. Terms apply.