Lesson No. 1 of retirement planning -- there's no such thing as two half-time jobs, he deadpans. The former City of Ann Arbor Energy Office head is now energy program director for Ann Arbor's Downtown Development Authority. He's also an energy consultant for ICLEI, an organization of local governments committed to sustainability. Although both positions are nominally half-time, he's backed off his national job to focus on getting downtown businesses into energy conservation mode with free energy audits paid for by the DDA.