Just wondering if anyone here has tried a lot of different codes on a consistent basis to find out if any one discount rate is consistently better. I use AARP (showing my age here) a lot and usually find it gets me an equal or lower rate than BJ's or a AAA code that I have. However I often still have to jump between rental companies - sometimes one company gives a lower rate than the other even though both offer discounts to AARP. Any opinions would be appreciated. Sharing information we may all get better rates. Thanks.