I'll add a few of my favorite UL items. I carry a lot of what has been mentioned earlier, but I won't repeat those. All measurements are in ounces
Siltwin tarp with rope and Stakes     10 
Montbell down jacket                  7.8
Montbell down pants                   6.8
driducks jacket (for rain and wind)   6
driducks pants (rain and wind)        4.3
Cooking system:
TiWare pot (REI)                      4
titanium spork                        .5
whitebox stove (from redbull can)     1
windscreen                            .8
denatured alcohol (.5 oz per day)     1
earplugs (never camp without them)    .1


My cooking system weighs a little under 6 ounces and has performed flawlessly through the years. The down pants or jacket work great as a pillow too.

Brent N