Even if you are already under the impression that Premier League clubs always spend big in January, you could be pretty stunned when you take a closer look at the figures from the past decade of the January transfer window.
Thanks to the financial services firm Deloitte, below are details of some of the window's most eye-catching deals during that time. Here's a good rush of nostalgia...
2007: £60 million
Aston Villa, then under Martin O'Neill's stewardship, took Ashley Young off Watford's hands for £9.65 million, while Javier Mascherano left West Ham for Liverpool, though not exactly quickly - the deal wasn't wrapped up until well into February. Overall, a relatively prudent month.
2008: £175 million
This bumper figure could easily surprise, considering that the heftiest disclosed fee was just £15 million - that's what Chelsea paid Bolton to recruit Nicolas Anelka. Branislav Ivanovic also joined the Blues, but from Lokomotiv Moscow, while Portsmouth took Jermain Defoe from Tottenham. Meanwhile, Stoke spent just £1 million for Manchester United's Ryan Shawcross.
2009: £170 million
Considering that Harry Redknapp had been at the helm of Portsmouth only a year earlier, it shouldn't have surprised anyone that, now managing Tottenham in this window, he brought Defoe back to Spurs. Robbie Keane also returned, but from Liverpool, while Wilson Palacios arrived from Wigan.
The North London club's combined bill for those three players was £39 million. It was also in this window that Andrei Arshavin went from Zenit St Petersburg to Arsenal.
2010: £30 million
This was a quiet window, but Manchester City did pick up the young Adam Johnson for £7 million from Middlesbrough. Patrick Vieira left Inter Milan to join City's ranks too, while Stoke spent just £3.25 million in signing Asmir Begovic from Portsmouth.
2011: £225 million
The staggering spending here was largely due to a quick succession of high-profile deals, including Chelsea's £50 million acquisition of Fernando Torres from Liverpool, which spent £23 million on Luis Suarez and £35 million on Andy Carroll. Lots of money also changed hands when Edin Dzeko joined Manchester City and David Luiz became a Chelsea player.
2012: £60 million
There was a reminder of past glories for both Arsenal and Manchester United when legends Thierry Henry and Paul Scholes returned to their old clubs. The deal commanding the largest fee, however, was Newcastle's £10 million move for Freiberg’s Papiss Cisse. Chelsea also swelled its ranks with the additions of Gary Cahill and Kevin De Bruyne.
2013: £120 million
A busy month for Liverpool, which spent £12 million capturing Daniel Sturridge from Chelsea and £8.5 million landing Philippe Coutinho from Inter Milan. Wilfried Zaha made a £10 million jump from Crystal Palace to Manchester United, though he ultimately didn't prove successful there.
Another flop move was Christopher Samba's; the defender moved to QPR for £12.5 million. The window also saw Everton spend £3 million taking John Stones from Barnsley.
2014: £130 million
Manchester United signed Juan Mata from Chelsea, breaking the Red Devils' transfer record as £37.1 million was spent. Chelsea paid £44 million for Nemanja Matic, Mohamed Salah and Kurt Zouma, but a mere £400,000 swapped hands when Leicester bought Riyad Mahrez from Le Havre.
2015: £130 million
Defoe made yet another January transfer window move, this time to Sunderland from Major League Soccer side Toronto FC. Zaha also rejoined Crystal Palace, bringing an end to his Old Trafford stint, while Dele Alli hopped from MK Dons to Spurs for £5 million.
However, that was peanuts compared to the £25 million that Manchester City paid Swansea for Wilfried Bony. Not far behind that was the £23.3 million that Chelsea shelled out for Juan Cuadrado, who arrived from Fiorentina.
2016: £175 million
While Newcastle was relegated last season, the club at least went down fighting as far as its January spending went. The Toon Army paid Swansea £12 million for Jonjo Shelvey and reportedly a similar fee to Tottenham for Andros Townsend.
Stoke also spent big, smashing its transfer record with a £18.3 million move for Gianelli Imbula. While he joined from Porto, it was Lokomotiv Moscow that Oumar Niasse left for Everton. The Merseyside club spent £13.5 million on the Senegalese striker, although he has made few appearances for the senior team since then.