Thrifty Car rentals - Beware they will impose a mandatory insurance rate. Normally double the rental car rates, you can NOT waive this like we do in the States (learned the hard way). So basically, your $20 a day rate for your 4day weekend that you got from the internet (Hotwire/Orbitz/Expedia, etcc..) will come out to over $300. What a nightmare if you budgeted your trip to include a car rental. Especially, if you already prepaid the rental on one of those travel sites.