Today only, Indigo is having early Black Friday access for Plum Plus members, so if you bought a Plum Plus membership during their last 20% off sale, then it might be a good idea to check out what they have. I’m guessing that the deals go live to everyone else at a later time.

You still get 10% off on top of everything, and the code Perk15 still works for 15% off 1 item.
Ebates currently has 4% off. Brim MasterCard has an in card reward, 300 points (worth $3) for first purchase, and then 3-10% off depending on what spending tier you are on.

The most interesting categories are the 40% off ones as you effectively get at least 50% off + another 15% off 1 item, so about 65% discount.

List of some discounted categories:
40% off Mugs and Hot Cocoa
– This category has Keep Cups, Joco Cups, Bodum Travel Mugs and Stojo Collapsible Cups. For example the 16oz Keep Cup is normally $36, but becomes $14.58.
40% off Hottest Books of the Season
40% off Select Stocking Stuffers
40% off Select Seasonal Decor
40% off Pillows and Throws
40% off Indigo Cold Weather Accessories and Reading Socks
40% off Calendars
40% off Moleskin Leuchtturm 1917 note books
50% off certain Tech Gifts (no Plum Plus discount on this)
50% off Holiday Boxed Cards
50% off Journals
25% off Water Bottles
20% off Games