Turn traction control off. If you're on ice, gooooooood luck! If you're on snow you can try different things depending on what kind of snow (light fluffy or thick/wet--good snowball snow).
If it's thick and wet there's a good chance it's slush on the road by now from traffic pounding it down. I say just take off real slow, as low revs as possible. Maybe even 2nd gear if you can. Since I put the AWR rear motor mount on it's much better, more clutch feel... I can do 2nd starts without slipping the clutch. Just let it out real slow.
The light snow you should just sink down in hopefully to pavement... I haven't had any real issue with a light dusting. It's a little slippery but not like the slushy mess of heavy wet snow.
But this is assuming that:
1. you are not on a hill (I had to go a different way to work the other day because someone stopped on a hill!)
and
2. they plow and salt your roads......
It's extremely rare I get to go out on untreated roads, and when I do there isn't a ton of snow. So maybe I'm underestimating how much snow you get in your area lol!
I'm getting my Blizzaks mounted today so I can assure you it'll be about 10x better with them, from having them on previous cars. I can understand you not wanting to get them though. They will wear fast on dry roads.