Thanks for the replies.
I did overlook the ground sheet. So I though in some Tyvek into the pack. Though I don't know the weight of it (my bad). But, getting the pack that light has really made me think twice about the ground sheet. In basic training we didn't use ground sheets but that was becuase a) we were in a miserable state anyway and b) it wasn't our sleeping bags. So, I am contemplating alternatives. If I find a nice grassy spot I can dry off nicely, I might not need the ground sheet....will see in just about 1 more day of waiting.
And the map....ooops, I missed that too. That being said, the hike I am going on is fairly well known to me with pretty much no need for detailed maps. I think I may forego the map in this one special instance.
The toilet paper....ah man....I really do love the feel of cottony softness on my rump roast. I might leave it behind next time I am hiking with a partner though, I pitty his/her toque though.
Mike: After I posted, I then realized that you were probably bound by contract to not offer it. Sorry for any uncomfortable feelings I caused. I will still buy the book. I guess I will just have to read "The Zombie Survival Guide" instead on the trip.
It was kind of interesting, taking the reverse approach to this pack-job. I threw together the pack, then made the list. I realized after that I had left out my repair kit and my first aid kit. Then I had a look at my gear and realized, for the things I am taking, I doubt my repair kit would offer much more benefit than a pair of pliers/knife and some "natural resources" would. Further, I never really use it. So, I left it out. The same thought process went with my first-aid kit too. I think I have used only about four square inches of mole skin out of a first-aid kit in 20 years of hiking, and it wasn't even for my foot (someone else's). With my background training in such things, a knife/pliers and some ingenuity is all I figure would be needed there too.
It really fixed the mind-set for going for lighter. I doubt my pack would have been less than 12-15 lbs if I had started with the list first. I don't think I would suggest doing this approach for long hikes. But, I am thinking it might be an interesting exercise for shorter hikes where some hardships are easier to tolerate or even ignore. In turn, this might just break some paradigms and offer up some "ultra-light freedom" for those times when you do start planning a bigger expedition.
With that said....I think I might just turf the toilet paper...but only if I have enough time to learn what to do if I feel "moved by nature" in the absence of TP. Else, the consequences could be horrible!