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To watch
Head over to North Avenue Beach (North Avenue and Lake Shore Drive) at 9 a.m. to watch 25 people hop into the lake. Marshalls will give $5,000 to the Heartland Alliance and free clothes to the wet participants.
To listen
Chuck Palahniuk, the author of “Fight Club,” will be at Borders (830 N. Michigan Ave.) to discuss his latest novel, “Rant,” at 7 p.m. Pick up a wristband earlier in the day so you’re guaranteed entrance. Free.
To save
Check out the sample sale hosted by Annie O Enterprises (2140 W. Fulton St.) from noon to 8 p.m. Get 20 percent off wholesale on women’s and men’s clothing and shoes.
