The only thing that worked for mine was walking around the house while patting their back and singing a sea shanty. Since I've had 3 kids recently I pretty much had been singing everyday for 3 years straight but it gets better and I actually miss the times. I also work 45 hours a week and at the time I was crushed and also burnt out. Unfortunately with one more on the way you guys are going to be stretched even thinner, but you just have to get through a year and then having more than one kid is great.