Highline, Seattle's finest divey vegan bar, doesn't normally serve dessert. But on Tuesday nights, they bring out the (vegan) cake (and Cake-arokee is rumored to be the most supportive karaoke night in the city). Get there early: The cake usually sells out.
Geeks Who Drink is a company that hosts trivia quizzes at different bars every damn day of the week, here in Seattle and all over creation, usually free (except for bar owners, who pay a "reasonable" rate). Starred for geeks who drink who like pub trivia.
Literally millions of happy hours are taking place around Seattle RIGHT NOW. One is highly likely right under your all-too-sober nose: Find out where it is here (for iPhone users) or here (for Luddites). Food! Drinks! Cheapness! Yes! CHEAP!.
According to the Local Vine's website, their monthly wine tasting will be held in "an open and relaxed setting" where "you will learn tricks to help improve your ability to taste, understand, and enjoy wine." Perhaps you can ask them to teach you the ultimate wine trick of them all: turning water into it. You'd be so popular! $20.