I guess cedar smells good and, like any wood, you can burn it for light and heat.

If survival was at issue, what other uses are there for cedar?

The Cedar storage box.

http://www.youtube.com/watch?v=g-hRAYMZAiE&feature=related

Where to begin - I'll quote Hilary Stewart:

All parts of the cedar tree had many uses. From the wood, skilled men made ocean-going canoes, massive post-and-beam houses, monumental carved poles that declared history, rights and lineage, and powerful dance masks. Women dextrously wove the inner bark into mats and baskets, plied it into cordage and netting or processed it into soft, warm, water-repellent clothing. They also made the strong withes into heavy-duty rope and wove the roots into watertight baskets.

Among numerous other uses, a cedar split placed above your doorway will keep away evil spirits. And a cedar plank is my preferred way to cook salmon. A few years back I would make cedar planks for Christmas gifts, then they became all the fashion, someone started making them cheaper commercially - Mom gave me a commecial cedar plank one birthday, made in China for chrissakes, sealed with some nasty resin, and it almost broke my spirit. Took it back to Target...

Legend is you can always find a dry space beneath a cedar to sleep - and that works.

Such a healthy history of the cedar in the Pacific Northwest, strong and deep enough even for a haole like me to tap into.

cedar bark was pounded and woven into clothes by PacNW Natives, I see no reason why it could not be used for its fibers in any application you could employ it; cordage, Clothing.
Cedar boughs burn particularly fast, smoky, and hot so they would be useful signaling for assistance.
Cedar also appears to be high in tannin, judging by the way old growth stands color creekwater. The uses of tannic acid are numerous- there are astringent qualities, it has also been employed in the curing of hides. That's all off the top of my head.

I have yet to have any planks available to try it myself... but, I hear that Cedar is excellent for making raised garden beds.
It is supposed to be very resistant to rot; thus, making a great organic alternative, to keep chemical-treated timbers/planks out of the garden.

I can vouch for that. The garden boxes I made from cedar fence planks are a year old and still look great. These planks came from 8+ year old fences knocked down by hurrcane Ike.

-Blast

Cedar splits along the grain fairly completely, so making cedar rail fence is pretty common. I make cedar walking sticks because when dry they are very light for their dimension and longitudinally stronger than most other local coniferous species.

Dry cedar makes a most excellent tinder/kindling for building fire. It burns very fast, ignites very easily, and produces good flame.

Cedar has some antiseptic properties, and the smoke is a great fumigant. Cedar planks added to containers ward off moths and other household bugs.

Cedar Shake Roofs.

I have a pallet of the stuff I use for kindling, found on my property. No telling how many years old it is but after letting it dry summer it's awesome wood! Splits almost perfectly for tiny splinters of kindling, and burns fast and decently hot enough

Cedar boughs make good insulation and comfortable bedding. The boughs are quite good for making wind breaks (basket weaving) and are good for roofing an emergency shelter/lean-to/wickiup.

Is any part of cedar good to eat?