Ollydog Mt. Tam Hands-Free Dog Leash - This leash isn't the lightest or the cheapest, but it works wonderfully. It has a simple system for strapping it around your waist and a very sturdy clasp. My only complaint is that the bungee part is a little stiff, and if your not careful your dog can jerk you down a mountain a little too quickly. Sheila tends to be much better behaved off of the leash than on, but we keep this for town and for camp.
Guyot Designs Squishy Pet Bowl - We got this bowl in the 24oz size. What can I say? It's lightweight, it's durable, it's foldable! I wanted something I could just shove anywhere and not have to worry about it being wet. This fits the billet!
Therm-a-rest RidgeRest SOlite Sleeping Pad - We cut this down to size for Sheila. It offers moderate protection from the cold ground and gives her a clue about where her "spot" is in the tent. This rolls up nicely and straps to the outside of my pack.
Ruffwear Cloud Chaser Soft Shell Dog Jacket - I never thought I would be one of those people who put clothes on my dog, but the weather we are going to be encountering mandates it. This jacket is awesome. It has a wonderfully fleece-y inside and a soft, water-resistant outer, making it windproof and waterproof. The material on the underbelly is treated with something that makes dirt and mud slide off easily. The long zipper on the side makes it easer to put on and take off than other jackets. It also has a highly reflective strip on the side so you can find your pooch at night.
The people at TeamUnruly give a great walkthrough on how to make a tiny first aid kit for your dog and they are the ones that inspired me to pack as much of the kit as possible into the prescription bottle. When all is said and done, it packs down into a pint-sized ziplock.