I received this coupon from Blinds.ca today. I've ordered wooden blinds from them twice already, and would not hesitate to recommend them. Their prices are already very reasonable, and the extra bit off makes it even better!

Details are as follows:
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Use this coupon code REF909455-6 to take $10 off your next order of $150 or more.
One per person, one per household, and must be presented at time of purchase. Minimum purchase of $150. Cannot be combined with any other offer. No limit on the number of people you refer. Offer expires 30 days from the date of this letter.
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Hope this helps someone!