Happy Hours and Rotating Specials Nights

OK, there was a thread started on "best happy hours" that never really took off. Pretty much everyone has a HH nowadays, but I'm looking for places that on a particular day have a great rotating special that is either unique to that day, and/or is heavily discounted off the regular price. Can be dive-y to highbrow, I go to both.

For instance, King's has "Plain Jane Tuesdays" when you can get a damn fine cheeseburger and a pint of Hamm's for $4. Bad Albert's has their prime rib night on Fridays. One night--I forget which--Goofy's has a decent roast chicken plate also for $4. That sort of thing. If Canlis has torchon of foie gras one night, bring it.

For each day of the week, it'd be nice to have a couple of places known for having good rotating specials. Thanks.

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Canlis Restaurant
2576 Aurora Ave N, Seattle, WA 98109