Im doing the same this year.. The 3 areas that I've identified that really add weight to my pack are:

1. Clothes... I love my wool, but its heavy! Sold it and now looking for lightest weight, yet warmest available garment.
2. Saftey belt..... These freaking full body harnesses are heavy!
3. Binoculars.. My big swaros are probably over kill....I may down grade to a lighter pair....

When my pack is loaded it weighs more than my climber... thats not good!