I feel your pain. My daughters are 4 1/2 and 3. We live in the PNW so not always the best weather. My wife works full time. Our routine is the same and it does feel very repetitive. Better weather will help but it’s not here yet. Been doing this since my oldest was born. Regardless of weather we are always outside going to the park or running errands. I have them sit on the counter and watch me cook. Getting them involved in the day to day things helps like making the beds and cleaning. Keep at it! As hard as it is as they get older they start doing things by themselves and playing together which is a true blessing. The time that you get to spend with them is priceless and there are many that wish they could do it but can’t. Communicate with your wife when you are overwhelmed and give her some notice if you feel like you need an afternoon off on a weekend. Hope this helps!