The last two times I went to Canada my luggage got lost. I mean really lost. In June, this year, I went about five days without my bag. Five days in a pair of capri sweats and bronze gladiator sandals - imagine my excitement. My own luggage tags and the airline tag had been caught in something and if it had not been for my "persistence" I probably ,would never have seen my clothes again.
Now, I buy the goofiest and brightest luggage tags I can. Hence the dancing polar bears. The other thing I never forget to do is keep a stash of business cards inside all of my bags - that way if the tags get torn off again there is some hope!