How often do you guys start your car over winter storage?

Specifically those of you in the sub freezing zones. Im in midwest, IL/WI border, so you know it gets pretty cold here.
Im really not concerned with batteries, as I put the car and bike on trickle chargers. More curious about getting some fuel going thru the carb. If I wait 2 weeks, its a monster to get going. Probly choke is not optimally set, but it is working. 6 pack carbs.
Just curious. Thanks!