Phil Windley’s site had a neato visited states thingy – I couldn’t resist. You can see the paths I have taken in roadtrips – we planned to take the minivan through idaho etc to Portage La Prarie in Manitoba a couple years ago but then our fab president took us to war and gas went to $3/gallon – so that was out. 
create your own personalized map of the USA
UPDATE: 2009: nothing has changed. almost got out again to winnipeg but the kids are still to young to get into it. Interesting point – this image is still up at world66, where many articles referred by this blog on newspapers are gone gone. When will newspapers get a clue?