We've figured out that we're staying in the Golden Nugget hotel while in Vegas and going to the Grand Canyon with Vegas Airlines, who seem to be the only airline offering flights without a tour attached. The reason we're not taking a bus is that there are no buses going there that don't have tours attached to them and it will take about 5x longer on the bus, making a one-way trip about 5 hours. We still need to figure out where we're going to stay while in the Grand Canyon and which airline to take to Las Vegas.
I'm going to see about buying a velvet Elvis while in LV.
I've gone back to drinking 1.5L of water/day, since I have been getting headaches from dehydration lately.