Not everyone's cup of tea I know, but there are some good deals to be had on there. I'm not a fan of the classic crocs but love the athens & capri flip flops - soooooooooooo comfy and they look good too.
15% off everything on Crocs.co.uk gives some great bargains, especially in the outlet section. Kids Athens are only £3.75 to begin with. P&P is £4.95 per order so not great if you're only buying one pair, but great if you buy several.
Don't forget Quidco
Hope this helps someone