If your issue with skirts in summer is the same as mine (i.e., thighs rubbing), there's a great product sold here (I don't know about Canada) that's a "Soothing Relief Chafing Relief Powder-Gel". I know, it sounds weird, but I found it last summer and I have the thighs from hell and it actually works. Which is good, because I much prefer to wear skirts to work in the summer.

(And I'm wearing my Skecher Mary Janes today!)