I don't really know how I got that rate! I just went to Dollar's website--www.dollar.com. I put in my dates and that rate came up. No codes or promos or anything. Actually, I played around with the dates. I originally put in five days, and the rate was much higher, I think something like $149. Then I put in six days and got the "weekly" rate. One hint--if you're in their silver club (or whatever its called) get rid of the silver code. When I used that code, the price was actually higher!I did put in the American Express code AMXRW but it came up the same price with or without that code. The AMXRW code simply alerts Dollar that you plan on using an American Express Membership Rewards coupon. In my case, I'm redeeming 10,000 AMEX Membership Rewards points for a coupon good for $100 towards a Dollar car rental. However, the use of the coupon did not affect the rate (I tried it both ways). I don't know if that rate was a special or anything and I used Dollar's website at 3 am, so maybe its some sort of late-night special? Try their website and if you don't get that rate try again at different times. Good Luck!