Hire forensic accountants to catch people who are not paying their taxes.
Do the political "heavy lifting" to implement a state income tax, with money going to cities in proportion to their population.
This is a better way to balance the budget than to raise sales taxes or cut needed services. We have already gone too far in both of these areas.
Increase the interest on unpaid property taxes and seize the property sooner. Fine repeat offenders that have a history of paying YEARS late.
Work with the County to insure that taxes are paid timely!