Bear in mind you need a Go Outdoors card (£7) else you end up paying an inflated price.
They are also a bit hit and miss when it comes to having a good range of sizes for all ranges. If you are taking advice on Boots make sure you choose your helper wisely (however every single one is better than the best at Blacks!)
Actually, Chubby, my discount card was only £4, but it makes a big difference as there's always 15% off everything with it, and most stuff on the bargain rails is only available if you have one. Their "full" price is generally the same as other places, so the card gives a proper discount I've found.
My boot salesman was absolutely great. Very patient while I tried on lots of boots, and really knew what he was talking about too.
SS