Not having a car, I don't have any auto club memberships though which kinda puts a limitation on that
Dave
Dave, I don't own a car and thought the same, but I recently obtained a personal membership from RACV for $26 a year which gives me all the discount benefits. I did this to save an additonal 5% (over $100) on a 3 week Hertz rental in the US. Not sure whether it is worth it just for domestic rentals. Hertz does give AAA members a 4% discount and significantly reduced excess for Australian rentals - $1,650 excess instead of $3,300 and no Single Vehicle Accident Excess (usually an additional $2,200 on top of standard excess).