Who would have known? This summer I went around the apartment, systematically, room by room, replacing my regular light bulbs with compact fluorescents lights (CFLs) at the recommendation of councilman Eric Garcetti. In the end, I replaced nine. The effects on our next two electricity bills we're amazing, yet confusing. Why was it considerably less? It really should be costlier in the summer due to our not-so-well insulated 1960's apartment when the AC must......