Lego Minifigures are usually £2.49 for the individual 'blind bags', Argos have the latest ones from series 13 on a special offer at 3 for £5. This works out at £1.67 each, which is the cheapest you can get them at the moment, and the discount will automatically be applied when you add 3 of the Series 13 Lego Minifigures to your basket.
It doesn't look like there's a maximum amount you can order at this price, and there are 16 figures in this series, but of course you don't know which characters you have until you open the bags!
I managed to grab some when Amazon had them on offer a few days ago, and we were chuffed to get the Hot Dog Guy in one of the bags, but if you are a Lego fan then you'll agree that they are all awesome.
As always with Argos you can use the free reserve and collect service, or home delivery will add an extra £3.95.
Thanks to jheeks @ HUKD