The North Carolina Senate is considering a budget plan for the 2003-05 biennium that would compound the House’s error in raising taxes in the midst of a slack economic recovery. While proponents of the plan claim that it would help families with children, the reality is that it would impose higher taxes on family purchases of such items as clothes, furniture, candy, soft drinks, and health insurance — in order to fund a $726 million increase in state spending, or 5.1 percent.