Canadian brand Dace is on Swirl right now at 50-60% off. I like this sweater, $89 (was $220).
There are a lot of 4th of July sales, but personally I'm partial to the Canada Day sale at Dace. This silk and cotton skirt on sale for $76 (originally $152), for example, should be an extra 40% off (so about $46) with the code MYCANADA through tomorrow, July 4.