When we picked up our car over spring break a few weeks ago, we were told that National had JUST changed their policy so that you could no longer have the double discount. If you have an Emerald aisle discount, you can't use the entertainment coupon on top of that. The woman took our $15 coupon and removed the 20% discount (which had been larger) and it wasn't worth it to us to fight over it but from now on I guess I won't use the $15 coupon if any sort of discount shows up.
Also the 20% discount is not a given. It may be 5%, it may be 10%, or even 15%. Sometimes it is nothing. It just depends. I have found the best rates on national's own website but as of late they seem to have gone up quite a bit.
Lisa
"You employ stone, wood, and concrete, and with these materials you build house and palaces. That is construction. Ingenuity is at work. But suddenly, you touch my heart, you do me good. I am happy and I say 'This is beautiful.' That is architecture. Art enters in."
-Le Corbusier