Extreme recyclers will have a chance to get rid of old pens and flip-flops at local stores this month. Office Depot and Old Navy are working with New Jersey-based TerraCycle to dispose of these items while keeping them out of landfills. Between April 17 and 23, shoppers can bring in 10 used pens, markers or mechanical pencils to Office Depot and receive a coupon toward new Sanford products (maker of Sharpie, Expo, PaperMate). The used writing instruments will be sent to TerraCycle to be recycled into new office products such as trash cans and desk organizers. Office Depot has two Vancouver locations: 8812 N.E. Fifth Ave. and 11505 N.E. Fourth Plain Road.