I cannot recommend trying to remove the wheels with screwdrivers. You are almost certainly going to bend the axles.
Your best bet would be option 3 - get a washer behind without removing the wheel.
Its possible to cut either a 671M-23 washer or a similar nylon washer to snap over the axle. Some folks report using either an E-ring, or horse shoe washer with good results.
These days I prefer to pull the wheels and replace the bearing on both sides.