I like to change the colour of the socks. We've had lots of different colours for them over the years with navy being the most common (i think we've had navy socks for 74 of our 117 years). Suprisingly, the sky blue socks with maroon turnovers - which everyone seems to think it "classic City" - we've only had for 7 years of our entire history.
As for home shorts. I don't mind sky blue, but white is our proper colour and white shorts make the sky blue shirts stand out more.