1. Neither mine nor SKnot's shrank.
2. They do the usual "tighten when you wash, loosen when you wear" denim thing.
3. I wash all my laundry in cold water. All of it. (My hot isn't even turned on.)
4. Tumble dry low (it's cheaper than high temp) or hang dry. Doesn't seem to make a difference for us.
5. You can order an extra half inch to the inseam if you are worried about shrinkage. DG has their bazillion standard inseams at every inch for women, but you can request whatever you want.