I have found that simply bringing an extra 3-oz balaclava hat really helps out when it gets cold. Especially sleeping, keeping your head and neck warm allows you to use a lighter sleeping bag.

I climbed Mt. Langley years ago- from the Tuttle Creek side. There was a lot of snow and huge sun-cups on the top flat area and it was very windy. I recall a lot of very loose scree. Bring gaiters so you do not get pebbles inside your shoes.

One item I consider essential if doing mountaineering, is a light survival blanket - the few oz. metallic mylar types. I also like to take a small square of ensolite pad. It is nice to sit on at rest breaks and provides insullation if you had to sit it out on the mountain overnight.

By the way, I have a little granddaughter named Ellis!