Hi,
No I haven't shaved my head. I just wear my wigs over my remaining hair. This is so that I can still go about without any covering on my head at all and not stand out too badly. Although I don't go anywhere like this when I'm bothered about looking good as you can see my bald spots nearly all the time now. I had that changing room moment you mentioned a few months ago. It's horrible realising you've been walking around for ages with a patch showing to everyone.

I know some folk wear toppers if they still have hair left - they're lighter than full wigs but you need to get them cut in to suit your existing hair.
I'm afraid I don't know too much about buying in Canada but on the heralopecia boards there is tonnes of information from a user named Merry who has posted all sorts of helpful hints on buying the right topper and not being ripped off! Reading her posts on that forum might prove useful before your shopping expedition at the weekend.