I know this seems mad, but if you go on their web-site, they have loads of crafty things. Today, I got; Staedtler pens, sticky dots, Self-healing cutting mat, double-sided tape and some adhesive spray, for a total of £13.61. Amazing.
They also do loads of craft knives, scissors etc, and card (250gsm), in coloured and white. It is brilliant. They deliver too, although I only live round the corner from them (smug face)!