I'm doing the same thing! So far, I only have the Bobbleheads and skill books. Same for me, my idea was to be able to sort by item type, or by location, then go from there. I usually keep mine on location, so when I enter an area, I look at the spreadsheet so I know what to get before I leave.
It is easier to use than the wiki because it has them all together. You can just CTRL+F on here.
The Wiki is useful if you go to the area you are in and look at notable loot though. If someone made a list of all the loot in every area i a list form that would be great too, but it would take a long time to go through it all and copy it all.
If someone is doing that just use the wiki and grab it all.
A.I. to Detroit=NBA Title=Lebron in 2010 http://img.photobucket.com/albums/v643/ripvanwallace/confusedpete.jpg
Any chance of getting some more detailed descriptions of the "Jackknifed Trucks", like has been done with a couple of them (4 that I saw in this thread)? I think there were 3 or 4 more Jackknifed Trucks that don't have a detailed description in regards to their location.