Britain's highest water bills are set to be cut by £50 a year as MPs voted through a £400 million handout to a private company.
South West Water customers, mainly in Devon and Cornwall, pay more than consumers elsewhere in the UK but the Commons has agreed to reduce their bills through the Water Industry (Financial Assistance) Bill which is being rushed through Parliament.
The Bill was given an unopposed third reading and the Government has asked Commons Speaker John Bercow to certify the legislation as a money Bill, meaning the House of Lords cannot amend it and guarantees it a swift passage to the statute book.
Environment minister Richard Benyon said: "We wanted to get on with funding South West Water to enable it to cut bills for its household customers."
The legislation also means the Government will be able to limit the cost to London residents of building a Thames Tunnel super-sewer to carry waste water.
Household bills were tipped to rise steeply because customers funded the much-needed infrastructure project but the state can now give financial support to the Thames Water firm to keep down costs to customers.
"We want to reassure potential investors in the Thames Tunnel from an early stage that the Government is willing to provide contingent financial support for exceptional project risk where this offers best value for money for Thames Water customers and taxpayers," Mr Benyon said.
He claimed the scheme will directly create 4,200 jobs, with thousands more in supply chains.
Shadow environment secretary Mary Creagh said the Bill "corrected a historic injustice" for water customers in the South West and "lays down powers to provide finance for infrastructure investment".
Liberal Democrat MP Dan Rogerson said customers in his North Cornwall constituency fund the cleaning of the region's beaches through higher bills and welcomed the new cash to reduce their household spending.
Save money on shopping
Water firm given £400m to cut bills
This takes time, but once you know the cost of a phone call, putting the dryer on, or a bag of potatoes, it enables you to judge far better how much you can afford to consume.
Once you know the base price, you are in a position to keep your eyes open for a better offer. If you see a discount you can judge for yourself whether it actually constitutes a bargain. For bigger things like utilities it enables you to do a proper price comparison and see if you can cut your bills.
Don't just assume that the premium range is better, try the every-day brand, or even the basic version and see if you spot the difference. Likewise, consider trading down your supermarket from one of the big players to local markets or discounters like Aldi.
If you plan what you buy to match what you actually cook and eat then not only will you be able to budget far more effectively, but you'll also waste much less and find your money goes further without you having to try.
If you can't think of a way to get your meat for less, consider a vegetarian day once a week. If you can't find petrol any cheaper, then work on making your driving as efficient as possible. The more you can think of clever alternatives the less you will have to make painful cuts to make ends meet.