We are moving out to Vegas and plan to drive from the Washington, DC area in a mini-van. We are going to take I-70. Optimistically, we hope to make the trip in four days. We were wondering if this was at all realistic. Additionally, does anyone have any advice re: problems we might encounter and/or anything we should be on the look out for? We plan to make a minimal number of stops, but would like to see some sights along the way, are there any attractions that wouldn't take us too far afield?