Between your wastebasket and the landfill stands a $50 million-a-year operation that Columbus officials say is getting increasingly difficult to pay for. Once again, they're thinking about charging city residents for garbage pickup, an idea that has come and gone through decades of economic cycles. This time, though, the likelihood has risen as the gap has grown between what Columbus collects in taxes and fees and what it must spend to maintain city services. "It has to be considered," said City Auditor Hugh J. Dorrian, who's on an economic advisory panel that will decide by March whether to recommend a...