A while back my wife and I went on an overnight trip to Tacoma to see the worst concert in the history of mankind (seriously, #$%#! you, Roger Waters, you complete and utter tool), so the highlight of the trip ended up being just wandering around Seattle on the way down.
Of course we had to visit Pike Place Market, and no trip to Pike Place would be complete without a stop at the gum wall, one of the grossest, coolest places anywhere.