Lots of last minute preparation going on right now, packing, upgrading iPad services and wondering what we will forget to bring. Driving old cars makes you wonder what spare pieces you should bring just in case the car breaks down in Wyoming  so, you start assembling spare pieces to take..... Waking up in the middle of the night wondering if you should take a second coil in case the first spare coil also fails. After a while you realize that there is no end to the number of spares you could bring and still not cover every eventuality. When you finally come to that conclusion you stop worrying and start looking forward to the adventure. This is going to be fun.