The 2013 Principal Charity Classic will be at the Wakonda Club and businesses are encouraged to learn more about preparing for the economic boost that will hit south Des Moines in May. To help businesses get ready for this year's tournament, the East and South Des Moines Chambers of Commerce, with the Principal Charity Classic, will present an informational lunch from 11:30 a.m. to 1 p.m. March 12 at the Wakonda Club, 3915 Fleur Drive. Cost to attend the lunch program is $30 per person, $20 for chamber members.You can register now through March 11 at edmsdmchambers.org.