I haven't really heard much about cross border shopping lately. Coincidentally, the last time cross border shopping was a big deal was about ten years ago which was also the last time the dollar was hovering around the 84-85 cents mark.
I predict that there will be a big todo about cross border shopping in the near future. I read an article about it last night. It said that cross border shopping will be mitigated by the fact that a lot of stores that were mainly available in the states are now available in Canada. This will be good news for the Mom&Pop's because a rising tide lifts all the boats.