(I am sorry to keep posting these questions that have probably been answered before, but the search isn't working for me.) I have a reservation over Christmas with National at the Car Care Center - 5 days, compact, $104 +fees (Amex contract ID # 5125601) Good deal, right? Does the Car Care Center have Emerald Aisle? (upgrade to bigger car or will get the compact?) I haven't rented in a long time, so give me some guidance with the whole insurance and extra fees situation. My insurance company says I am covered for a rental car except for "loss of rent". Does anyone know if National has anything about this in their policy? How about a Discover Platinum card? What does that cover as far as insurance? If I have to purchase LDW, that will be more than the rental... Anything else I might need to be aware of? Thank you for all your help.