I managed to find very few. Note though that most are on sale from the original price, and online from US retailers.
|BR wool sheath dress, $79 on sale|
|Ann Taylor knit tweed sheath dress, $79 online|
|Ann Taylor moody jaguar print sheath, $79|
|Loft wool sheath dress, $89|
I've concluded that cute, quality sheaths under $100 don't exist in Canada.But of course there's always Winners...