Does anyone breastfeed at home but give formula while you're at work? What do you do on the weekends? Are you able to avoid formula on the weekend or do you not have enough milk during the day?

Since presumably your body would decrease your supply during the day if you don't pump at work, would you be able to breastfeed during the day on the weekend? I'm just curious because I hate pumping. It would be awesome if I could stop pumping but continue to nurse DD when I'm with her.