I got up early and went through a bunch of clothing in my gear locker and put it all in a spreadsheet with columns for stuff like "base layer top," "base layer bottoms," mid-layer, insulation, shells, etc, etc.
This is so much different than listing just a selection in my all-round gear list for a trip. Very illuminating! If you go through the bother of entering *all* your stuff, organized by function and weight, you can immediately see the weak spots in your gear and where you have too much of one kind of clothing. Of course, the lightest in each category pops right out.
I'd like to have a flow-chart style arrangement where I could click on one item per block and get running totals as I go. Getting CLO values and a running total of the estimated temperature performance of your selection would be really wild.