the only post that I recall reading was 'katypop' from last year - her friend's luggage never showed up after a week, and the resort did give them some money to buy clothes.
I don't know if they were ever able to determine if ME or Air Canada lost the luggage, however, and I don't know if it ever did turn up at all ie after they returned home.
I will advise you that luggage is usually very very rarely 'lost' - even though you hear passengers using that term. If anything, it is 'delayed' ie it shows up a few hours or a few days later.
In 15 years of very very frqeuent travel my luggage was delayed twice by a few hours (on my homeward trip) and the only serious delay was when I moved from Germany and British Airways misplaced my luggage for 3 days. Again, that's pretty rare for such a long delay.
FWIW, my company requires that we travel in business attire (used to be business professional all the way down to hoisery) for exactly that reason ie delayed luggage - the thought is that at least we will be dressed to meet clients. And for the same reason, posters here recommend takign some essentials in your carryon.