The Addison Hat is now available for sale on Ravelry here. Several of my wonderful friends test knit this for me, and one of them even bought the pattern even though I said I would give it to her. Aren't knitters nice?!
And in answer to Anna's (and possibly others') question about the shop on Larimer, I don't remember what the name of it was but everything was French-, wine-, or dish-related, so I could have spun around with a blindfold on, reached my hand out, and found a good gift for my mother-in-law! If I think of the name, I will post it.