We recently moved from Florida to San Francisco. I thought it would be a wonderful idea to take a little weekend trip (this weekend) to Yosemite. Booked the hotel and all was well. Then we start hearing from co-workers that we'll need tire chains and all kinds of foreign stuff in order to handle the drive. Being from Florida, the most travel preparation we're accustomed to is which pair of flip-flops to bring. So, we're really freaked out. Are we going to crash into a ravine? Will we be charged hundreds of dollars for these tire chain thingeys?? Please help! Our lovely, supposedly "peaceful" weekend communing with nature is at stake.