I put mine on in mid December and keep them on until March. Anything else would be far too much hassle for me. The Nokian studs wear at about the same rate as the rubber. After two seasons and 1,200 miles, mine still look like new.

Slicks don't work too badly in snow. Unless the snow is deep, a bike on slicks is oftenbetter than a car. I doubt whether you would need a ride home if caught by a surprise snow at work.

Paul