If you sign up with an email address to the Maplins newsletter they give away a set of coupons including:
£5 Voucher - Valid against orders over £50
£7 Voucher - Valid against orders over £75
£10 Voucher - Valid against orders over £100
£30 Voucher - Valid against orders over £300
£40 Voucher - Valid against orders over £400
£50 Voucher - Valid against orders over £500
They are emailed out as soon as you reply to a Maplins confirmation email. They are valid for up to a month. To use these vouchers on the web, simply type the code in after you have added a product to your basket.
Where: www.maplins.co.uk
How: Subscribe to Maplins newsletter. Follow the "Subscribe" link on the top navigation bar.