Wetherspoons customers can track down the cheapest pints and biggest chip portions in London using a new map.
The much-loved pub chain has varying pricing depending on location.
So one savvy Spoons fan has worked out the cheapest places in London to get the best value deals.
A member of social network Reddit created the map to help customers save their pennies, the Sun reports.
A student made the map using data from the Facebook group " Wetherspoons paltry chip count" and added in prices from the Wetherspoons app.
The map uses Carling as a benchmark, as it is the most common lager in the UK and available in many pubs
Unsurprisingly, central London pubs had the most expensive Carling - but also had surprisingly large chip portions.
"As a procrastinating Geography student, I made a map of London Wetherspoons chip portions compared to pint prices," the Redditor said.
"I used data from a Facebook group of people counting chips and pint prices from the Wetherspoons app."
But Spoons is also selling discounted booze in many of its branches for another three weeks.
In November the firm announced it was cutting prices on many alcoholic and soft drinks until February 28 2022.
The pub chain said more than 750 pubs are adding to their offers.
The changes mean a mini 200ml bottle of prosecco is on sale for £2.99 and a full 750ml bottle for £10.99.
All hot drinks in every Wetherspoons pub will cost 99p, with free refills.
Spoons is even selling pints for 99p each at 671 pubs.
A pint of Ruddles Best is on offer for 99p, though some branches will sell Greene King IPA instead, for the same price.
Every branch of Spoons will be selling a 25ml Gordon's gin and mixer for £1.99.
Wine lovers can pick from a medium 175ml glass of Chardonnay, Pinot Grigio, Merlot of White Zinfandel Rose for £1.69.
In 99 of the chain's pubs a pint of real ale will cost £1.10, with a bottle of Beck's beer or a 25ml Bell's whisky and mixer for 99p.
The slightly higher price for beer is because these pubs are in Scotland and Wales, which both have minimum unit price restrictions.
Wetherspoons branches in airports are not taking part in the deals.
Earlier this month The Mirror reported Wetherspoons had cut the price of its curry and steak club deals - but only on Tuesdays and Thursdays.
Visitors to the pub chain can save as much as £1.60 when ordering the meal deals.
In June Wetherspoons began offering the meals seven days a week.
The pub chain is still selling the curry and steak club options every day, but with special discounts on Tuesdays and Thursdays.
The Wetherspoons standard steak meal with an alcoholic drink normally costs £9.95, but this will be cut to £8.29 on Tuesdays - £1.66 less.
Likewise, the pub's gourmet steak and a beer, which normally costs £11.45, will cost £10.29 instead - also on Tuesdays.