B&Q 15% off everything in store
Register 'n' print voucher
Get 15% off all full-priced items, with the exception of installations and gift cards, in-store at B&Q with this printable voucher. The voucher is only valid from Thurs 20 August to Tues 25 August in-store, so can't be used at diy.com or nextday.diy.com. Unfortunately the voucher's not valid on sale items.
There's no minimum spend to get the 15% off but the voucher cannot be used with other discounts like the trade card.
http://www.moneysavingexpert.com/deals/discount-voucher-codes
Just enter your name and any old email address (you know, the one you keep for registering on dodgy web sites) and print off a voucher with your name on it.