Office Depot is big in the US, but only has a presence in 5 Canuck provinces: AB,BC,MB,SK,ON. If you're not shipping to one of those provinces, you don't get free shipping on orders over $50 and you can't use the "clickable" coupons.
Shipping is FREE for orders over $50 if you live in "close" to a retail store. (for example: there are no Officedepot's in Quebec, so Quebec residents have to pay for shipping even if the order total is over $50.)
Outside of OD's "Delivery Area"?
"I've got some good advice for your Office Depot customers, esp. those who live outside the local delivery area (like me): Placing your order directly with the store which delivers to you, allows you to specify which 3rd party courier service you would like them to use... so do yourself a favour and look up who is the cheapest carrier for the item you want to send, otherwise they might send it Loomis Courier, which will cost you a small fortune. (In my case, it cost me more than the item I ordered - I am currently sorting this out with Office Depot because they did not warn me of the cost, as is their policy.) You can still cash in coupon codes over the phone.