Replying to Ski Waxing and Tuning for noobs

I just got into skiing and I've bought my own ski gear, but I've got some stuff I'm still not super sure about. (correct me if I'm wrong) but I would assume when the season comes around I can just ski with my skis right out of the box without any tuning or waxing, but what about after a couple times of skiing, how often will I need to tune and/or wax my skis? During the season I usually only have time to ski on Saturdays and Sundays.