It's internet land's big day of giddy excitement and ludicrous ambitions. These deals, though, prove why...
1. Ashley Cole – Arsenal to Chelsea, 2006 (£5m)
For just £5 million, Cole can be considered one of the greatest bargains in Chelsea’s history. Granted, the Blues had to give up William Gallas in an exchange deal, but what Cole helped the club achieve more than proved his worth.
In nine years at Stamford Bridge, Cole helped the club lift nine titles, including one Premier League crown, four FA Cups and the 2012 Champions League – Chelsea’s first ever triumph in the competition.