My local Target store has Silk Soy milk for sale: 2 half-gallons for $5.00. I found this online coupon for $2.25 off a half gallon of soy milk.
Considering how expensive a gallon of cow milk is nowadays, I will switch to drinking soy milk for a few days if I can get it for almost free. I know the taste of soy milk can be an “acquired” taste so, if you want to give it a chance, try the Vanilla flavor. It’s sweet and nutty.